diff --git a/.github/workflows/build-machines-and-homes.yml b/.github/workflows/build-machines-and-homes.yml
index 2614cba..b15bc22 100644
--- a/.github/workflows/build-machines-and-homes.yml
+++ b/.github/workflows/build-machines-and-homes.yml
@@ -73,7 +73,9 @@ jobs:
       
       - name: cache result
         run: |
-          nix run github:zhaofengli/attic push main result
+          derivation="$(nix path-info --derivation "${{ matrix.machine }}")"
+          cache="$(nix-store --query --requisites --include-outputs "$derivation")"
+          nix run github:zhaofengli/attic push main --stdin <<< "$cache"
 
       - name: prepare tarball to upload
         run: nix run github:nixos/nixpkgs#gnutar hcvf result.tar result
@@ -142,7 +144,9 @@ jobs:
 
       - name: cache result
         run: |
-          nix run github:zhaofengli/attic push main result
+          derivation="$(nix path-info --derivation "${{ matrix.home }}")"
+          cache="$(nix-store --query --requisites --include-outputs "$derivation")"
+          nix run github:zhaofengli/attic push main --stdin <<< "$cache"
 
       - name: prepare tarball to upload
         run: nix run github:nixos/nixpkgs#gnutar hcvf result.tar result
diff --git a/.github/workflows/build-packages.yml b/.github/workflows/build-packages.yml
index dbcf6c6..7edb468 100644
--- a/.github/workflows/build-packages.yml
+++ b/.github/workflows/build-packages.yml
@@ -48,7 +48,9 @@ jobs:
       
       - name: cache result
         run: |
-          nix run github:zhaofengli/attic push main result
+          derivation="$(nix path-info --derivation "${{ matrix.package }}")"
+          cache="$(nix-store --query --requisites --include-outputs "$derivation")"
+          nix run github:zhaofengli/attic push main --stdin <<< "$cache"
 
       - name: prepare tarball to upload
         run: nix run github:nixos/nixpkgs#gnutar hcvf result.tar result