diff --git a/pkgs/development/libraries/libwacom/default.nix b/pkgs/development/libraries/libwacom/default.nix
index 9ebb2c855cba..2f9afff56d87 100644
--- a/pkgs/development/libraries/libwacom/default.nix
+++ b/pkgs/development/libraries/libwacom/default.nix
@@ -12,7 +12,7 @@
 
 stdenv.mkDerivation rec {
   pname = "libwacom";
-  version = "1.12";
+  version = "1.99.1";
 
   outputs = [ "out" "dev" ];
 
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
     owner = "linuxwacom";
     repo = "libwacom";
     rev = "libwacom-${version}";
-    sha256 = "sha256-pCO0lB0liveIEZIxY3IJcqlmWy4rYhSBtRPssfzHEow=";
+    sha256 = "sha256-WGW/4m+BTe6dEigUcuUIZjoTeamInW6zrtrlaqKM6Js=";
   };
 
   nativeBuildInputs = [