diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index c7dbb5f..7b0d47f 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -64,6 +64,10 @@ jobs:
         run: |
           scp "${{ env.IMAGE_PATH }}" remote:~
 
+      - name: Cleanup cache after Nix build
+        run: |
+          nix-store --delete "${{ env.IMAGE_PATH }}"
+
       - name: Deploy on remote
         run: |
           ssh remote <<\EOF