diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index a197b682..00c22044 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -57,7 +57,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v20
+      - uses: cachix/install-nix-action@V28
       - uses: cachix/cachix-action@v15
         with:
           name: ethermint
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v20
+      - uses: cachix/install-nix-action@V28
       - uses: cachix/cachix-action@v15
         with:
           name: ethermint
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 58bd7479..7929d58a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -88,7 +88,7 @@ jobs:
     # timeout-minutes: 30
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v20
+      - uses: cachix/install-nix-action@V28
       - uses: cachix/cachix-action@v15
         with:
           name: ethermint
@@ -124,7 +124,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v20
+      - uses: cachix/install-nix-action@V28
       - uses: cachix/cachix-action@v15
         with:
           name: ethermint