diff --git a/pkgs/tools/networking/trurl/default.nix b/pkgs/tools/networking/trurl/default.nix
index 3b5139873209..50b70e3f574b 100644
--- a/pkgs/tools/networking/trurl/default.nix
+++ b/pkgs/tools/networking/trurl/default.nix
@@ -2,15 +2,22 @@
 
 stdenv.mkDerivation rec {
   pname = "trurl";
-  version = "0.8";
+  version = "0.9";
 
   src = fetchFromGitHub {
     owner = "curl";
     repo = pname;
     rev = "${pname}-${version}";
-    hash = "sha256-KHJMxzHqHW8WbeD6jxyuzZhuHc5x4B7fP/rYAK687ac=";
+    hash = "sha256-R/7Saea84iqUICAAQz9zcfDLDud4uFedY2752xyg+oE=";
   };
 
+  # The version number was forgotten to be updated for the release,
+  # so do it manually in the meantime.
+  # See https://github.com/curl/trurl/discussions/244#discussioncomment-7436369
+  postPatch = ''
+    substituteInPlace version.h --replace 0.8 0.9
+  '';
+
   outputs = [ "out" "dev" "man" ];
   separateDebugInfo = stdenv.isLinux;