diff --git a/indra/newview/VIEWER_VERSION.txt b/indra/newview/VIEWER_VERSION.txt
index d613169e8896c11271275886f09efa7954d4589f..0438a6cd919ab449d4053f88ec7542acc671f4af 100644
--- a/indra/newview/VIEWER_VERSION.txt
+++ b/indra/newview/VIEWER_VERSION.txt
@@ -1 +1 @@
-6.4.12
+6.4.13