diff --git a/appveyor.yml b/appveyor.yml
index 4a494a8..eb2d2e6 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 environment:
-  CURRENT_VERSION: 1.3.8
-version: 1.3.8-{build}
+  CURRENT_VERSION: 1.3.9
+version: 1.3.9-{build}
 os: Visual Studio 2015
 assembly_info:
   patch: true