diff --git a/pkgs/development/compilers/mlkit/default.nix b/pkgs/development/compilers/mlkit/default.nix
index 45cb09d5a2a1..8ce19c1be3dd 100644
--- a/pkgs/development/compilers/mlkit/default.nix
+++ b/pkgs/development/compilers/mlkit/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "mlkit";
-  version = "4.5.2";
+  version = "4.5.6";
 
   src = fetchFromGitHub {
     owner = "melsman";
     repo = "mlkit";
     rev = "v${version}";
-    sha256 = "1yk7phxnwkm94qs1gbxsr6sr11a0sgpcyjymmqwf0fsl5njgyb98";
+    sha256 = "sha256-aa6dRcGTXGakJsHCvHXRKs5BHtIZi6V2r8348epzpVc=";
   };
 
   nativeBuildInputs = [ autoreconfHook mlton ];