diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 865683ba1..18290bff2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v17
+    - uses: cachix/install-nix-action@v18
     - run: nix-env -f default.nix -iA build
     - run: postgrest-docs-build
 
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v17
+    - uses: cachix/install-nix-action@v18
     - run: nix-env -f default.nix -iA spellcheck
     - run: postgrest-docs-spellcheck
 
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v17
+    - uses: cachix/install-nix-action@v18
     - run: nix-env -f default.nix -iA linkcheck
     - run: postgrest-docs-linkcheck