diff --git a/.github/workflows/cachix.yaml b/.github/workflows/cachix.yaml
index 91cb4ff..87851e7 100644
--- a/.github/workflows/cachix.yaml
+++ b/.github/workflows/cachix.yaml
@@ -15,7 +15,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - uses: cachix/install-nix-action@v18
+    - uses: cachix/install-nix-action@v20
 
     - name: Run alejandra
       run: nix run nixpkgs#alejandra -- --check .
@@ -26,7 +26,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - uses: cachix/install-nix-action@v18
+    - uses: cachix/install-nix-action@v20
 
     - uses: cachix/cachix-action@v12
       with:
@@ -55,7 +55,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - uses: cachix/install-nix-action@v18
+    - uses: cachix/install-nix-action@v20
 
     - uses: cachix/cachix-action@v12
       with:
@@ -83,7 +83,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - uses: cachix/install-nix-action@v18
+    - uses: cachix/install-nix-action@v20
 
     - uses: cachix/cachix-action@v12
       with: