diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index c37b4ae59b..ba9209d2d3 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -55,7 +55,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - uses: cachix/install-nix-action@v20
+    - uses: cachix/install-nix-action@v21
       with:
         extra_nix_config: |
           experimental-features = nix-command flakes
@@ -87,7 +87,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - uses: cachix/install-nix-action@v20
+    - uses: cachix/install-nix-action@v21
       with:
         extra_nix_config: |
           experimental-features = nix-command flakes