diff --git a/pkgs/development/tools/parsing/re2c/default.nix b/pkgs/development/tools/parsing/re2c/default.nix
index a945f3bdde03..c3b09b71d173 100644
--- a/pkgs/development/tools/parsing/re2c/default.nix
+++ b/pkgs/development/tools/parsing/re2c/default.nix
@@ -1,23 +1,31 @@
-{ lib, stdenv, fetchFromGitHub, autoreconfHook }:
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoreconfHook
+, python3
+}:
 
 stdenv.mkDerivation rec {
   pname = "re2c";
-  version = "2.1.1";
+  version = "2.2";
 
   src = fetchFromGitHub {
     owner  = "skvadrik";
     repo   = "re2c";
     rev    = version;
-    sha256 = "06nvk5sf4vrc2bvpj4vi2xwy3ggv548sn530drz5fi67nhzgga26";
+    sha256 = "0snfxk1cf2f4dy4hcxd1fx1grav3di0qjgqqn97k85zsf9f6ys78";
   };
 
-  nativeBuildInputs = [ autoreconfHook ];
+  nativeBuildInputs = [
+    autoreconfHook
+    python3
+  ];
 
   doCheck = true;
   enableParallelBuilding = true;
 
   preCheck = ''
-    patchShebangs run_tests.sh
+    patchShebangs run_tests.py
   '';
 
   meta = with lib; {