diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 38126dd68..2aa3a3300 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -64,7 +64,7 @@ jobs:
     - run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
     - uses: cachix/install-nix-action@v25
       with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
+        install_url: https://releases.nixos.org/nix/nix-2.20.3/install
     - uses: cachix/cachix-action@v14
       with:
         name: '${{ env.CACHIX_NAME }}'
@@ -116,7 +116,7 @@ jobs:
         fetch-depth: 0
     - uses: cachix/install-nix-action@v25
       with:
-        install_url: https://releases.nixos.org/nix/nix-2.13.3/install
+        install_url: https://releases.nixos.org/nix/nix-2.20.3/install
     - run: echo CACHIX_NAME="$(echo $GITHUB_REPOSITORY-install-tests | tr "[A-Z]/" "[a-z]-")" >> $GITHUB_ENV
     - run: echo NIX_VERSION="$(nix --experimental-features 'nix-command flakes' eval .\#default.version | tr -d \")" >> $GITHUB_ENV
     - uses: cachix/cachix-action@v14