diff --git a/pkgs/development/libraries/tinygltf/default.nix b/pkgs/development/libraries/tinygltf/default.nix
index af9938e3b8a6..d0f5d0add698 100644
--- a/pkgs/development/libraries/tinygltf/default.nix
+++ b/pkgs/development/libraries/tinygltf/default.nix
@@ -6,14 +6,14 @@
 }:
 
 stdenv.mkDerivation rec {
-  version = "2.5.0";
+  version = "2.6.3";
   pname = "tinygltf";
 
   src = fetchFromGitHub {
     owner = "syoyo";
     repo = "tinygltf";
     rev = "v${version}";
-    sha256 = "sha256-Pw4iNJs0bKALVPFBYUJe5/WjHxdffungCKfJFJEpDas=";
+    sha256 = "sha256-IyezvHzgLRyc3z8HdNsQMqDEhP+Ytw0stFNak3C8lTo=";
   };
 
   nativeBuildInputs = [ cmake ];