diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 43d9c1e..2f7adad 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -25,7 +25,7 @@ jobs:
 
       - run: rustup toolchain install stable --profile minimal --component llvm-tools-preview --no-self-update
 
-      - uses: taiki-e/install-action@6c6fd71fe4fb72c3697d269963d0e15df8adedad # v2.85.10
+      - uses: taiki-e/install-action@82cd3e7658a6f96c86c0234aeeda1748937cb0a1 # v2.85.13
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index b1cce29..e360fa1 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -20,7 +20,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: cachix/install-nix-action@630ae543ea3a38a9a4166f03376c02c50f408342 # v31.11.0
+      - uses: cachix/install-nix-action@13d8dd58da0234aa297dedd986986ccb8e7f3e24 # v31.11.1
 
       - uses: ./
         with: