diff --git a/ghc/VERSION b/ghc/VERSION
index 698a0d4c0cac86d7417d1328016775f9b567f9b5..fdbf8dafbe807a4c845a184d5dae799ca3407003 100644
--- a/ghc/VERSION
+++ b/ghc/VERSION
@@ -1 +1 @@
-The Glasgow Haskell Compiler, version 4.05
+The Glasgow Haskell Compiler, version 4.06
diff --git a/ghc/mk/version.mk b/ghc/mk/version.mk
index 4c7b2b56c5a3af0af6813153f047929ffaa5abda..3c4d50fea535ce838de00b9335222e260a19f447 100644
--- a/ghc/mk/version.mk
+++ b/ghc/mk/version.mk
@@ -30,8 +30,8 @@
 
 ProjectName       = The Glorious Glasgow Haskell Compilation System
 ProjectNameShort  = ghc
-ProjectVersion    = 4.05
-ProjectVersionInt = 405
+ProjectVersion    = 4.06
+ProjectVersionInt = 406
 
 #
 # Optionally, you can get the compiler driver to check the