diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index ad9a033..8c7cb79 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -6,7 +6,7 @@ jobs:
     name: list available perl versions
     runs-on: 'ubuntu-latest'
     steps:
-      - uses: shogo82148/actions-setup-perl@v1
+      - uses: shogo82148/actions-setup-perl@v1.8.3
       - id: set-matrix
         name: list available perl versions
         shell: perl {0}
@@ -27,7 +27,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: switch to perl ${{ matrix.perl }}
-        uses: shogo82148/actions-setup-perl@v1
+        uses: shogo82148/actions-setup-perl@v1.8.3
         with:
           perl-version: ${{ matrix.perl }}