diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2531a7d35b2..a18b7010b11 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@v2.3.4
       with:
         fetch-depth: 0
-    - uses: cachix/install-nix-action@v12
+    - uses: cachix/install-nix-action@v19
     - run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
     - uses: cachix/cachix-action@v8
       with:
@@ -44,7 +44,7 @@ jobs:
       with:
         fetch-depth: 0
     - run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
-    - uses: cachix/install-nix-action@v12
+    - uses: cachix/install-nix-action@v19
     - uses: cachix/cachix-action@v8
       with:
         name: '${{ env.CACHIX_NAME }}'
@@ -62,7 +62,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2.3.4
     - run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
-    - uses: cachix/install-nix-action@master
+    - uses: cachix/install-nix-action@v19
       with:
         install_url: '${{needs.installer.outputs.installerURL}}'
         install_options: "--tarball-url-prefix https://${{ env.CACHIX_NAME }}.cachix.org/serve"