diff --git a/pkgs/_sources/generated.json b/pkgs/_sources/generated.json
index ead7b1a0..799e9ec3 100644
--- a/pkgs/_sources/generated.json
+++ b/pkgs/_sources/generated.json
@@ -182,11 +182,11 @@
             "name": null,
             "owner": "richardwilkes",
             "repo": "gcs",
-            "rev": "v5.28.0",
-            "sha256": "sha256-VfWRLfyK4RMF16ck5p+dXkMnrMjJw7DSlQvPMT1By+c=",
+            "rev": "v5.27.0",
+            "sha256": "sha256-N4a+7a1XpDXsZTDiTh1AZIzXfk/A+gV4uBZdGZh+S5I=",
             "type": "github"
         },
-        "version": "v5.28.0"
+        "version": "v5.27.0"
     },
     "ohmyzsh": {
         "cargoLocks": null,
diff --git a/pkgs/_sources/generated.nix b/pkgs/_sources/generated.nix
index cea7522e..9029f277 100644
--- a/pkgs/_sources/generated.nix
+++ b/pkgs/_sources/generated.nix
@@ -99,13 +99,13 @@
   };
   gcs = {
     pname = "gcs";
-    version = "v5.28.0";
+    version = "v5.27.0";
     src = fetchFromGitHub {
       owner = "richardwilkes";
       repo = "gcs";
-      rev = "v5.28.0";
+      rev = "v5.27.0";
       fetchSubmodules = false;
-      sha256 = "sha256-VfWRLfyK4RMF16ck5p+dXkMnrMjJw7DSlQvPMT1By+c=";
+      sha256 = "sha256-N4a+7a1XpDXsZTDiTh1AZIzXfk/A+gV4uBZdGZh+S5I=";
     };
   };
   ohmyzsh = {
diff --git a/pkgs/nvfetcher.toml b/pkgs/nvfetcher.toml
index b5abc79b..e3fa51b5 100644
--- a/pkgs/nvfetcher.toml
+++ b/pkgs/nvfetcher.toml
@@ -37,7 +37,8 @@ src.github_tag = "pcarrier/gauth"
 fetch.github = "pcarrier/gauth"
 
 [gcs]
-src.github = "richardwilkes/gcs"
+# src.github = "richardwilkes/gcs"
+src.manual = "v5.27.0"
 fetch.github = "richardwilkes/gcs"
 
 [ohmyzsh]