diff --git a/include/version.h b/include/version.h
index 85372497..c2a2e02c 100644
--- a/include/version.h
+++ b/include/version.h
@@ -1,4 +1,4 @@
 // generated header, see makeversion.py
-#define RADIANT_VERSION "1.6.5"
-#define RADIANT_MINOR_VERSION "5"
+#define RADIANT_VERSION "1.6.6"
+#define RADIANT_MINOR_VERSION "6"
 #define RADIANT_MAJOR_VERSION "6"