diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 4f4e5960..1296bb66 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -28,7 +28,7 @@ jobs:
       with:
         ruby-version: 2.6
     - name: install package
-      run: sudo apt-get -yq install libunicode-linebreak-perl gettext python3-polib
+      run: sudo apt-get -yq install libunicode-linebreak-perl gettext python3-polib libyaml-tiny-perl
     - name: install requirements
       run: sh ci/install_po4a.sh
     - name: Install dependencies
diff --git a/ci/install_po4a.sh b/ci/install_po4a.sh
index 78dd3a68..76e40db5 100644
--- a/ci/install_po4a.sh
+++ b/ci/install_po4a.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 
 git clone https://github.com/mquinson/po4a.git
-cd po4a && git checkout v0.62 && cd ..
+cd po4a && git checkout v0.70 && cd ..