diff --git a/.github/workflows/nix-flake-check.yaml b/.github/workflows/nix-flake-check.yaml
index b0d951a..c22c62e 100644
--- a/.github/workflows/nix-flake-check.yaml
+++ b/.github/workflows/nix-flake-check.yaml
@@ -14,7 +14,7 @@ jobs:
       contents: read
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: determinatesystems/nix-installer-action@c5a866b6ab867e88becbed4467b93592bce69f8a # v21
+      - uses: determinatesystems/nix-installer-action@ef8a148080ab6020fd15196c2084a2eea5ff2d25 # v22
       - run: |
           echo "Version: \`$(nix --version)\`" \
           | tee --append "${GITHUB_STEP_SUMMARY}"
diff --git a/.github/workflows/run-pre-commit-via-determinate.yaml b/.github/workflows/run-pre-commit-via-determinate.yaml
index 3b34b36..2dccf60 100644
--- a/.github/workflows/run-pre-commit-via-determinate.yaml
+++ b/.github/workflows/run-pre-commit-via-determinate.yaml
@@ -25,7 +25,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: determinatesystems/nix-installer-action@c5a866b6ab867e88becbed4467b93592bce69f8a # v21
+      - uses: determinatesystems/nix-installer-action@ef8a148080ab6020fd15196c2084a2eea5ff2d25 # v22
       - uses: determinatesystems/magic-nix-cache-action@565684385bcd71bad329742eefe8d12f2e765b39 # v13
       - uses: determinatesystems/flake-checker-action@3164002371bc90729c68af0e24d5aacf20d7c9f6 # v12