diff --git a/.github/workflows/build-and-publish.yml b/.github/workflows/build-and-publish.yml
index d3933096..912558e9 100644
--- a/.github/workflows/build-and-publish.yml
+++ b/.github/workflows/build-and-publish.yml
@@ -18,7 +18,7 @@ jobs:
           filter: tree:0
 
       - name: Install Nix
-        uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31.10.4
+        uses: cachix/install-nix-action@ab739621df7a23f52766f9ccc97f38da6b7af14f # v31.10.5
 
       - name: Setup dev environment
         shell: &dev-shell 'nix develop -c bash -eo pipefail {0}'
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a3486739..f0d6eb0b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
           filter: tree:0
 
       - name: Install Nix
-        uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31.10.4
+        uses: cachix/install-nix-action@ab739621df7a23f52766f9ccc97f38da6b7af14f # v31.10.5
 
       - name: Setup dev environment
         shell: &dev-shell 'nix develop -c bash -eo pipefail {0}'