diff --git a/nixos/modules/services/continuous-integration/github-runner/options.nix b/nixos/modules/services/continuous-integration/github-runner/options.nix
index 23436c2adf71..e571a96ccb86 100644
--- a/nixos/modules/services/continuous-integration/github-runner/options.nix
+++ b/nixos/modules/services/continuous-integration/github-runner/options.nix
@@ -289,7 +289,6 @@
                   "node24"
                 ]);
               default = [
-                "node20"
                 "node24"
               ];
               description = ''
diff --git a/pkgs/by-name/gi/github-runner/package.nix b/pkgs/by-name/gi/github-runner/package.nix
index 6999b71a8a44..c38f27abb913 100644
--- a/pkgs/by-name/gi/github-runner/package.nix
+++ b/pkgs/by-name/gi/github-runner/package.nix
@@ -17,7 +17,7 @@
   runtimeShell,
   # List of Node.js runtimes the package should support
   nodeRuntimes ? [
-    "node20"
+    # Node.js 20.x has reached EOL and is marked as insecure in Nixpkgs, thus omitted here
     "node24"
   ],
   nodejs_20,