diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 4c4c3f5..cb62fa6 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Checkout repo
       uses: actions/checkout@v3
     - name: Install nix
-      uses: cachix/install-nix-action@v16
+      uses: cachix/install-nix-action@v20
       with:
         extra_nix_config: |
           experimental-features = nix-command flakes
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index c2467e4..c91142c 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -33,7 +33,7 @@ jobs:
         submodules: true
 
     - name: Install nix
-      uses: cachix/install-nix-action@v16
+      uses: cachix/install-nix-action@v20
       with:
         extra_nix_config: |
           experimental-features = nix-command flakes
@@ -76,7 +76,7 @@ jobs:
         submodules: true
 
     - name: Install nix
-      uses: cachix/install-nix-action@v16
+      uses: cachix/install-nix-action@v20
       with:
         extra_nix_config: |
           experimental-features = nix-command flakes