diff --git a/pkgs/development/tools/minizinc/default.nix b/pkgs/development/tools/minizinc/default.nix
index ad267e6bcdd8..c1e0a356df35 100644
--- a/pkgs/development/tools/minizinc/default.nix
+++ b/pkgs/development/tools/minizinc/default.nix
@@ -1,6 +1,6 @@
 { lib, stdenv, fetchFromGitHub, cmake, flex, bison }:
 let
-  version = "2.5.4";
+  version = "2.5.5";
 in
 stdenv.mkDerivation {
   pname = "minizinc";
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
     owner = "MiniZinc";
     repo = "libminizinc";
     rev = version;
-    sha256 = "sha256-/vJyh2WdESimJTCASsg6xjVzG2EkL4V87B+xvIUBcMM=";
+    sha256 = "sha256-9z2E6KqOys9UUXlXWB4eDhg34kS3PhUB1Dd1F6iGYoE=";
   };
 
   meta = with lib; {