diff --git a/SConstruct b/SConstruct
index fcfb9e1d73d..f8edfd8d918 100644
--- a/SConstruct
+++ b/SConstruct
@@ -49,9 +49,9 @@ import subprocess
 ###############################################################################################
 
 gafferMilestoneVersion = 0 # for announcing major milestones - may contain all of the below
-gafferMajorVersion = 5 # backwards-incompatible changes
+gafferMajorVersion = 6 # backwards-incompatible changes
 gafferMinorVersion = 0 # new backwards-compatible features
-gafferPatchVersion = 1 # bug fixes
+gafferPatchVersion = 0 # bug fixes
 
 # All of the following must be considered when determining
 # whether or not a change is backwards-compatible