diff --git a/src/version.h.in b/src/version.h.in
index 90aeb815..a8763e12 100644
--- a/src/version.h.in
+++ b/src/version.h.in
@@ -5,9 +5,9 @@
 
 #define PROJECT_MAJOR_VERSION "2"
 #define PROJECT_MINOR_VERSION "1"
-#define PROJECT_REVISION "5"
+#define PROJECT_REVISION "6"
 #define PROJECT_VERSION PROJECT_MAJOR_VERSION "." PROJECT_MINOR_VERSION "." PROJECT_REVISION
 
-#define PROJECT_VERSION_BUILD_NO 397
+#define PROJECT_VERSION_BUILD_NO 399
 #define PROJECT_VERSION_BUILD_NO_STR STRINGIFY_EXPAND(PROJECT_VERSION_BUILD_NO)
 #define PROJECT_VERSION_LONG PROJECT_VERSION "." PROJECT_VERSION_BUILD_NO_STR "[" BUILD_COMMIT_ID "]"