diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 2ed79a7..fa3df67 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -17,6 +17,8 @@ jobs:
 
       - name: Setup Nix cache
         uses: DeterminateSystems/magic-nix-cache-action@v13
+        with:
+          use-flakehub: false
 
       - name: Build
         run: nix develop --command cargo build --verbose
@@ -34,6 +36,8 @@ jobs:
 
       - name: Setup Nix cache
         uses: DeterminateSystems/magic-nix-cache-action@v13
+        with:
+          use-flakehub: false
 
       - name: Fuzz validate target
         run: |
@@ -55,6 +59,8 @@ jobs:
 
       - name: Setup Nix cache
         uses: DeterminateSystems/magic-nix-cache-action@v13
+        with:
+          use-flakehub: false
 
       - name: Run codegen
         run: |