diff --git a/sdk/build_tools_source.properties b/sdk/build_tools_source.properties
index 0025a2add..7d096cc15 100644
--- a/sdk/build_tools_source.properties
+++ b/sdk/build_tools_source.properties
@@ -1,3 +1,3 @@
 Pkg.UserSrc=false
-Pkg.Revision=18.1.0
+Pkg.Revision=18.1.1