diff --git a/pkgs/development/libraries/assimp/default.nix b/pkgs/development/libraries/assimp/default.nix
index 53051eb2a310..45eef22e69fb 100644
--- a/pkgs/development/libraries/assimp/default.nix
+++ b/pkgs/development/libraries/assimp/default.nix
@@ -8,14 +8,14 @@
 
 stdenv.mkDerivation rec {
   pname = "assimp";
-  version = "5.4.2";
+  version = "5.4.3";
   outputs = [ "out" "lib" "dev" ];
 
   src = fetchFromGitHub {
     owner = "assimp";
     repo = "assimp";
     rev = "v${version}";
-    hash = "sha256-4KpqH3rSNSTAXMFPWAvGTZA4jzKIChHFdtW97sK2EyY=";
+    hash = "sha256-sOYhYHBz3Tg+pi1OIJ1mGmsjEc6dPO6nFH0aolfpLRA=";
   };
 
   nativeBuildInputs = [ cmake ];