diff --git a/push-nix-cache/action.yaml b/push-nix-cache/action.yaml
index 62601e3..bd9edac 100644
--- a/push-nix-cache/action.yaml
+++ b/push-nix-cache/action.yaml
@@ -27,6 +27,6 @@ runs:
         echo "${NIX_SIGNING_KEY}" > /tmp/nix-key
         nix store sign -k /tmp/nix-key --recursive "${{ inputs.store-path }}"
         nix copy \
-          --to "s3://${{ inputs.s3-bucket }}?endpoint=${{ inputs.s3-endpoint }}&access-key-id=${AWS_ACCESS_KEY_ID}&secret-access-key=${AWS_SECRET_ACCESS_KEY}" \
+          --to "s3://${{ inputs.s3-bucket }}?endpoint=${{ inputs.s3-endpoint }}" \
           "${{ inputs.store-path }}"
         rm /tmp/nix-key