diff --git a/.github/workflows/build-and-cache.yml b/.github/workflows/build-and-cache.yml
index f3c29e3..da63c6b 100644
--- a/.github/workflows/build-and-cache.yml
+++ b/.github/workflows/build-and-cache.yml
@@ -53,6 +53,7 @@ jobs:
           remove-codeql: 'true'
           remove-docker-images: 'true'
           build-mount-path: /nix
+      - run: sudo chown root:root /nix
       - uses: DeterminateSystems/nix-installer-action@main
         with:
           logger: pretty
@@ -92,6 +93,7 @@ jobs:
           remove-codeql: 'true'
           remove-docker-images: 'true'
           build-mount-path: /nix
+      - run: sudo chown root:root /nix
       - uses: DeterminateSystems/nix-installer-action@main
         with:
           logger: pretty