diff --git a/pkgs/by-name/so/source-meta-json-schema/package.nix b/pkgs/by-name/so/source-meta-json-schema/package.nix
index eb68f2b5c150..b65313fd7381 100644
--- a/pkgs/by-name/so/source-meta-json-schema/package.nix
+++ b/pkgs/by-name/so/source-meta-json-schema/package.nix
@@ -4,18 +4,16 @@
   fetchFromGitHub,
   cmake,
 }:
-let
-  version = "14.0.3";
-in
+
 stdenv.mkDerivation (finalAttrs: {
   pname = "source-meta-json-schema";
-  inherit version;
+  version = "14.7.1";
 
   src = fetchFromGitHub {
     owner = "sourcemeta";
     repo = "jsonschema";
-    rev = "v${version}";
-    hash = "sha256-wRB/syj79pz5walyuefCYcfN/JoRbnxuwWHE2w3LKs8=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-zQ9GyJBaSzDL7i/PurOW4yJR59pX/0CLZ2DgDJmA6+s=";
   };
 
   nativeBuildInputs = [