diff --git a/.github/workflows/run-aishell-2022-06-20.yml b/.github/workflows/run-aishell-2022-06-20.yml
index c46cea0f64..d14196f385 100644
--- a/.github/workflows/run-aishell-2022-06-20.yml
+++ b/.github/workflows/run-aishell-2022-06-20.yml
@@ -44,7 +44,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -119,5 +119,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: aishell-torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless3-2022-06-20
+          name: aishell-torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless3-2022-06-20
           path: egs/aishell/ASR/pruned_transducer_stateless3/exp/
diff --git a/.github/workflows/run-gigaspeech-2022-05-13.yml b/.github/workflows/run-gigaspeech-2022-05-13.yml
index f8ee25cc4d..0e47f75387 100644
--- a/.github/workflows/run-gigaspeech-2022-05-13.yml
+++ b/.github/workflows/run-gigaspeech-2022-05-13.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -122,5 +122,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-gigaspeech-pruned_transducer_stateless2-2022-05-12
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-gigaspeech-pruned_transducer_stateless2-2022-05-12
           path: egs/gigaspeech/ASR/pruned_transducer_stateless2/exp/
diff --git a/.github/workflows/run-librispeech-2022-03-12.yml b/.github/workflows/run-librispeech-2022-03-12.yml
index d42202b79c..3edbe43ecf 100644
--- a/.github/workflows/run-librispeech-2022-03-12.yml
+++ b/.github/workflows/run-librispeech-2022-03-12.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless-2022-03-12
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless-2022-03-12
           path: egs/librispeech/ASR/pruned_transducer_stateless/exp/
diff --git a/.github/workflows/run-librispeech-2022-04-29.yml b/.github/workflows/run-librispeech-2022-04-29.yml
index f42c8f27a5..bb44a073b7 100644
--- a/.github/workflows/run-librispeech-2022-04-29.yml
+++ b/.github/workflows/run-librispeech-2022-04-29.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -174,12 +174,12 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless2-2022-04-29
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless2-2022-04-29
           path: egs/librispeech/ASR/pruned_transducer_stateless2/exp/
 
       - name: Upload decoding results for pruned_transducer_stateless3
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless3-2022-04-29
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless3-2022-04-29
           path: egs/librispeech/ASR/pruned_transducer_stateless3/exp/
diff --git a/.github/workflows/run-librispeech-2022-05-13.yml b/.github/workflows/run-librispeech-2022-05-13.yml
index 1fbd96157a..e7b53b21cf 100644
--- a/.github/workflows/run-librispeech-2022-05-13.yml
+++ b/.github/workflows/run-librispeech-2022-05-13.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless5-2022-05-13
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless5-2022-05-13
           path: egs/librispeech/ASR/pruned_transducer_stateless5/exp/
diff --git a/.github/workflows/run-librispeech-2022-11-11-stateless7.yml b/.github/workflows/run-librispeech-2022-11-11-stateless7.yml
index 596596bd9c..7e378c9a14 100644
--- a/.github/workflows/run-librispeech-2022-11-11-stateless7.yml
+++ b/.github/workflows/run-librispeech-2022-11-11-stateless7.yml
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless7-2022-11-11
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless7-2022-11-11
           path: egs/librispeech/ASR/pruned_transducer_stateless7/exp/
diff --git a/.github/workflows/run-librispeech-2022-11-14-stateless8.yml b/.github/workflows/run-librispeech-2022-11-14-stateless8.yml
index dca7d6d253..a2c1a0ad61 100644
--- a/.github/workflows/run-librispeech-2022-11-14-stateless8.yml
+++ b/.github/workflows/run-librispeech-2022-11-14-stateless8.yml
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless8-2022-11-14
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless8-2022-11-14
           path: egs/librispeech/ASR/pruned_transducer_stateless8/exp/
diff --git a/.github/workflows/run-librispeech-2022-12-01-stateless7-ctc.yml b/.github/workflows/run-librispeech-2022-12-01-stateless7-ctc.yml
index cd41e988e6..500ab1736a 100644
--- a/.github/workflows/run-librispeech-2022-12-01-stateless7-ctc.yml
+++ b/.github/workflows/run-librispeech-2022-12-01-stateless7-ctc.yml
@@ -159,5 +159,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless7-ctc-2022-12-01
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless7-ctc-2022-12-01
           path: egs/librispeech/ASR/pruned_transducer_stateless7_ctc/exp/
diff --git a/.github/workflows/run-librispeech-2022-12-08-zipformer-mmi.yml b/.github/workflows/run-librispeech-2022-12-08-zipformer-mmi.yml
index 91242c4015..1a7f9f5948 100644
--- a/.github/workflows/run-librispeech-2022-12-08-zipformer-mmi.yml
+++ b/.github/workflows/run-librispeech-2022-12-08-zipformer-mmi.yml
@@ -163,5 +163,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-zipformer_mmi-2022-12-08
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-zipformer_mmi-2022-12-08
           path: egs/librispeech/ASR/zipformer_mmi/exp/
diff --git a/.github/workflows/run-librispeech-2022-12-15-stateless7-ctc-bs.yml b/.github/workflows/run-librispeech-2022-12-15-stateless7-ctc-bs.yml
index e0130a6367..40a7429880 100644
--- a/.github/workflows/run-librispeech-2022-12-15-stateless7-ctc-bs.yml
+++ b/.github/workflows/run-librispeech-2022-12-15-stateless7-ctc-bs.yml
@@ -159,5 +159,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless7-ctc-bs-2022-12-15
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless7-ctc-bs-2022-12-15
           path: egs/librispeech/ASR/pruned_transducer_stateless7_ctc_bs/exp/
diff --git a/.github/workflows/run-librispeech-2022-12-29-stateless7-streaming.yml b/.github/workflows/run-librispeech-2022-12-29-stateless7-streaming.yml
index 8490a62fc9..68014e20c4 100644
--- a/.github/workflows/run-librispeech-2022-12-29-stateless7-streaming.yml
+++ b/.github/workflows/run-librispeech-2022-12-29-stateless7-streaming.yml
@@ -168,5 +168,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless7-streaming-2022-12-29
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless7-streaming-2022-12-29
           path: egs/librispeech/ASR/pruned_transducer_stateless7_streaming/exp/
diff --git a/.github/workflows/run-librispeech-conformer-ctc3-2022-11-28.yml b/.github/workflows/run-librispeech-conformer-ctc3-2022-11-28.yml
index 40a37da574..905515dc4d 100644
--- a/.github/workflows/run-librispeech-conformer-ctc3-2022-11-28.yml
+++ b/.github/workflows/run-librispeech-conformer-ctc3-2022-11-28.yml
@@ -151,5 +151,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-conformer_ctc3-2022-11-28
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-conformer_ctc3-2022-11-28
           path: egs/librispeech/ASR/conformer_ctc3/exp/
diff --git a/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml b/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml
index aba29d0664..501fae38c9 100644
--- a/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml
+++ b/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.8]
 
       fail-fast: false
@@ -159,5 +159,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'shallow-fusion' || github.event.label.name == 'LODR'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-lstm_transducer_stateless2-2022-09-03
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-lstm_transducer_stateless2-2022-09-03
           path: egs/librispeech/ASR/lstm_transducer_stateless2/exp/
diff --git a/.github/workflows/run-librispeech-pruned-transducer-stateless3-2022-05-13.yml b/.github/workflows/run-librispeech-pruned-transducer-stateless3-2022-05-13.yml
index fd497601d9..bf73d4f184 100644
--- a/.github/workflows/run-librispeech-pruned-transducer-stateless3-2022-05-13.yml
+++ b/.github/workflows/run-librispeech-pruned-transducer-stateless3-2022-05-13.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -153,5 +153,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless3-2022-04-29
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless3-2022-04-29
           path: egs/librispeech/ASR/pruned_transducer_stateless3/exp/
diff --git a/.github/workflows/run-librispeech-streaming-transducer-stateless2-2022-06-26.yml b/.github/workflows/run-librispeech-streaming-transducer-stateless2-2022-06-26.yml
index 57fe5b999b..6ea3084689 100644
--- a/.github/workflows/run-librispeech-streaming-transducer-stateless2-2022-06-26.yml
+++ b/.github/workflows/run-librispeech-streaming-transducer-stateless2-2022-06-26.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-pruned_transducer_stateless2-2022-06-26
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-pruned_transducer_stateless2-2022-06-26
           path: egs/librispeech/ASR/pruned_transducer_stateless2/exp/
diff --git a/.github/workflows/run-librispeech-streaming-zipformer-2023-05-18.yml b/.github/workflows/run-librispeech-streaming-zipformer-2023-05-18.yml
index ed934d56d8..5145fb43c2 100644
--- a/.github/workflows/run-librispeech-streaming-zipformer-2023-05-18.yml
+++ b/.github/workflows/run-librispeech-streaming-zipformer-2023-05-18.yml
@@ -170,5 +170,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-zipformer-2022-11-11
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-zipformer-2022-11-11
           path: egs/librispeech/ASR/zipformer/exp/
diff --git a/.github/workflows/run-librispeech-transducer-stateless2-2022-04-19.yml b/.github/workflows/run-librispeech-transducer-stateless2-2022-04-19.yml
index 515122a66b..9fe2f03891 100644
--- a/.github/workflows/run-librispeech-transducer-stateless2-2022-04-19.yml
+++ b/.github/workflows/run-librispeech-transducer-stateless2-2022-04-19.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-transducer_stateless2-2022-04-19
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-transducer_stateless2-2022-04-19
           path: egs/librispeech/ASR/transducer_stateless2/exp/
diff --git a/.github/workflows/run-librispeech-zipformer-2023-05-18.yml b/.github/workflows/run-librispeech-zipformer-2023-05-18.yml
index 7ecf0d2a07..e9d235ad19 100644
--- a/.github/workflows/run-librispeech-zipformer-2023-05-18.yml
+++ b/.github/workflows/run-librispeech-zipformer-2023-05-18.yml
@@ -155,5 +155,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-zipformer-2022-11-11
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-zipformer-2022-11-11
           path: egs/librispeech/ASR/zipformer/exp/
diff --git a/.github/workflows/run-librispeech-zipformer-ctc-2023-06-14.yml b/.github/workflows/run-librispeech-zipformer-ctc-2023-06-14.yml
index 569ce48fca..48f0b15320 100644
--- a/.github/workflows/run-librispeech-zipformer-ctc-2023-06-14.yml
+++ b/.github/workflows/run-librispeech-zipformer-ctc-2023-06-14.yml
@@ -151,5 +151,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-zipformer-2022-11-11
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-zipformer-2022-11-11
           path: egs/librispeech/ASR/zipformer/exp/
diff --git a/.github/workflows/run-pretrained-conformer-ctc.yml b/.github/workflows/run-pretrained-conformer-ctc.yml
index 8aaea35f68..bcd326b9d1 100644
--- a/.github/workflows/run-pretrained-conformer-ctc.yml
+++ b/.github/workflows/run-pretrained-conformer-ctc.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
diff --git a/.github/workflows/run-pretrained-transducer-stateless-librispeech-100h.yml b/.github/workflows/run-pretrained-transducer-stateless-librispeech-100h.yml
index 03a1df48e9..1e5b25f5c4 100644
--- a/.github/workflows/run-pretrained-transducer-stateless-librispeech-100h.yml
+++ b/.github/workflows/run-pretrained-transducer-stateless-librispeech-100h.yml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -154,5 +154,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-transducer_stateless_multi_datasets-100h-2022-02-21
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-transducer_stateless_multi_datasets-100h-2022-02-21
           path: egs/librispeech/ASR/transducer_stateless_multi_datasets/exp/
diff --git a/.github/workflows/run-pretrained-transducer-stateless-librispeech-multi-datasets.yml b/.github/workflows/run-pretrained-transducer-stateless-librispeech-multi-datasets.yml
index 8da4ff56af..9063c0ed6e 100644
--- a/.github/workflows/run-pretrained-transducer-stateless-librispeech-multi-datasets.yml
+++ b/.github/workflows/run-pretrained-transducer-stateless-librispeech-multi-datasets.yml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -154,5 +154,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-transducer_stateless_multi_datasets-100h-2022-03-01
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-transducer_stateless_multi_datasets-100h-2022-03-01
           path: egs/librispeech/ASR/transducer_stateless_multi_datasets/exp/
diff --git a/.github/workflows/run-pretrained-transducer-stateless-modified-2-aishell.yml b/.github/workflows/run-pretrained-transducer-stateless-modified-2-aishell.yml
index 0b3e70d776..2d24528d38 100644
--- a/.github/workflows/run-pretrained-transducer-stateless-modified-2-aishell.yml
+++ b/.github/workflows/run-pretrained-transducer-stateless-modified-2-aishell.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
diff --git a/.github/workflows/run-pretrained-transducer-stateless-modified-aishell.yml b/.github/workflows/run-pretrained-transducer-stateless-modified-aishell.yml
index a6a59d3393..761b261313 100644
--- a/.github/workflows/run-pretrained-transducer-stateless-modified-aishell.yml
+++ b/.github/workflows/run-pretrained-transducer-stateless-modified-aishell.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
diff --git a/.github/workflows/run-pretrained-transducer-stateless.yml b/.github/workflows/run-pretrained-transducer-stateless.yml
index 98d84bf966..e46b9a849c 100644
--- a/.github/workflows/run-pretrained-transducer-stateless.yml
+++ b/.github/workflows/run-pretrained-transducer-stateless.yml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
@@ -154,5 +154,5 @@ jobs:
         uses: actions/upload-artifact@v2
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
-          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-18.04-cpu-transducer_stateless-2022-02-07
+          name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-transducer_stateless-2022-02-07
           path: egs/librispeech/ASR/transducer_stateless/exp/
diff --git a/.github/workflows/run-pretrained-transducer.yml b/.github/workflows/run-pretrained-transducer.yml
index 8c1a652e09..190e446bc2 100644
--- a/.github/workflows/run-pretrained-transducer.yml
+++ b/.github/workflows/run-pretrained-transducer.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.7, 3.8, 3.9]
 
       fail-fast: false
diff --git a/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml b/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml
index 6c70c646b8..319a5558a3 100644
--- a/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml
+++ b/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04]
+        os: [ubuntu-latest]
         python-version: [3.8]
 
       fail-fast: false
diff --git a/.github/workflows/run-yesno-recipe.yml b/.github/workflows/run-yesno-recipe.yml
index f997e634ae..8a2c948297 100644
--- a/.github/workflows/run-yesno-recipe.yml
+++ b/.github/workflows/run-yesno-recipe.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        # os: [ubuntu-18.04, macos-10.15]
+        # os: [ubuntu-latest, macos-10.15]
         # TODO: enable macOS for CPU testing
         os: [ubuntu-latest]
         python-version: [3.8]