diff --git a/pkgs/development/tools/build-managers/icmake/default.nix b/pkgs/development/tools/build-managers/icmake/default.nix
index 8fd519073cc..03968d15b12 100644
--- a/pkgs/development/tools/build-managers/icmake/default.nix
+++ b/pkgs/development/tools/build-managers/icmake/default.nix
@@ -2,10 +2,10 @@
 
 stdenv.mkDerivation rec {
   name = "icmake-${version}";
-  version = "8.01.00";
+  version = "9.00.00";
 
   src = fetchFromGitHub {
-    sha256 = "1vgjywbc4w1agkakfndr2qf0z0ncxisihdv8sz9ipry9f170np39";
+    sha256 = "028rxx4ygy0z48m30m5pdach7kcp41swchhs8i15wag1mppllcy2";
     rev = version;
     repo = "icmake";
     owner = "fbb-git";