diff --git a/pkgs/development/libraries/cosmopolitan/default.nix b/pkgs/development/libraries/cosmopolitan/default.nix
index 6947fcde68f0..63f45f62fd14 100644
--- a/pkgs/development/libraries/cosmopolitan/default.nix
+++ b/pkgs/development/libraries/cosmopolitan/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cosmopolitan";
-  version = "2.1";
+  version = "2.1.1";
 
   src = fetchFromGitHub {
     owner = "jart";
     repo = pname;
     rev = version;
-    sha256 = "sha256-qi82iGw0Sj2pgV9O4rr/q7jyd1XG3MpTr69dXdAUH0Q=";
+    sha256 = "sha256-2Q4lutSIQ6tBwTy01lPSMepNAww9Kb7BwNyEcsSdWZ0=";
   };
 
   patches = [