diff --git a/lib/compilation.nim b/lib/compilation.nim
index c8a89ded7e..0355ecf7bd 100644
--- a/lib/compilation.nim
+++ b/lib/compilation.nim
@@ -10,6 +10,6 @@ const
     ## is the minor number of Nim's version.
     ## Odd for devel, even for releases.
 
-  NimPatch* {.intdefine.}: int = 20
+  NimPatch* {.intdefine.}: int = 21
     ## is the patch number of Nim's version.
     ## Odd for devel, even for releases.