diff --git a/build/bakefiles/version.bkl b/build/bakefiles/version.bkl
index 345e1d664c..0d7df5b70c 100644
--- a/build/bakefiles/version.bkl
+++ b/build/bakefiles/version.bkl
@@ -23,9 +23,9 @@
        3. Else, i.e. if there were no changes at all to API but only internal
           changes, change C:R:A to C:R+1:A
     -->
-    <set var="WX_CURRENT">4</set>
+    <set var="WX_CURRENT">5</set>
     <set var="WX_REVISION">0</set>
-    <set var="WX_AGE">4</set>
+    <set var="WX_AGE">5</set>
 
 
     <!-- ================================================================== -->