diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8282635..99c9cbf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,6 +24,11 @@ jobs:
         with:
           name: unstoppablemango
 
+      - uses: cachix/cachix-action@5f2d7c5294214f71b873db4b969586b980625e71 # v17
+        with:
+          name: mangopkgs
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+
       - run: make check build
 
   codegen:
@@ -43,5 +48,10 @@ jobs:
         with:
           name: unstoppablemango
 
+      - uses: cachix/cachix-action@5f2d7c5294214f71b873db4b969586b980625e71 # v17
+        with:
+          name: mangopkgs
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+
       - run: nix develop -c make generate
       - run: git diff --exit-code