diff --git a/pkgs/development/tools/build-managers/cmake/default.nix b/pkgs/development/tools/build-managers/cmake/default.nix
index 5ddbefe08845..59bcfe45ea22 100644
--- a/pkgs/development/tools/build-managers/cmake/default.nix
+++ b/pkgs/development/tools/build-managers/cmake/default.nix
@@ -10,8 +10,8 @@ assert wantPS -> (ps != null);
 
 let
   os = stdenv.lib.optionalString;
-  majorVersion = "3.3";
-  minorVersion = "2";
+  majorVersion = "3.4";
+  minorVersion = "0";
   version = "${majorVersion}.${minorVersion}";
 in
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "${meta.homepage}files/v${majorVersion}/cmake-${version}.tar.gz";
-    sha256 = "08pwy9ip9cgwgynhn5vrjw8drw29gijy1rmziq22n65zds6ifnp7";
+    sha256 = "1shwim3gfdybjx9f11ykxz5l09rh58vmvz8ip76q3i76mkv2pf55";
   };
 
   enableParallelBuilding = true;