diff --git a/pkgs/applications/science/logic/opensmt/default.nix b/pkgs/applications/science/logic/opensmt/default.nix
index 6ab52ff9aa79..9fe60db79a37 100644
--- a/pkgs/applications/science/logic/opensmt/default.nix
+++ b/pkgs/applications/science/logic/opensmt/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "opensmt";
-  version = "2.4.1";
+  version = "2.4.2";
 
   src = fetchFromGitHub {
     owner = "usi-verification-and-security";
     repo = "opensmt";
     rev = "v${version}";
-    sha256 = "sha256-Hy+NCR0gbU06WnfIyKy6XTH94vd0CevwGbZ7KlXVvIQ=";
+    sha256 = "sha256-BvENPCrQ9XWg4NgFIcOP04BysBGBmCRakA6NCFccKWE=";
   };
 
   nativeBuildInputs = [ cmake bison flex ];