diff --git a/lib/Serialization/ModuleFormat.h b/lib/Serialization/ModuleFormat.h
index 838835a93c7d9..2e2e641ab957a 100644
--- a/lib/Serialization/ModuleFormat.h
+++ b/lib/Serialization/ModuleFormat.h
@@ -55,7 +55,7 @@ const uint16_t SWIFTMODULE_VERSION_MAJOR = 0;
 /// describe what change you made. The content of this comment isn't important;
 /// it just ensures a conflict if two people change the module format.
 /// Don't worry about adhering to the 80-column limit for this line.
-const uint16_t SWIFTMODULE_VERSION_MINOR = 545; // SILFunctionType pattern sigs/subs
+const uint16_t SWIFTMODULE_VERSION_MINOR = 546; // Avoid conflict with downstream bump
 
 /// A standard hash seed used for all string hashes in a serialized module.
 ///