diff --git a/build/Build.cs b/build/Build.cs
index 9d8a6b28..2ed3c2e6 100644
--- a/build/Build.cs
+++ b/build/Build.cs
@@ -77,7 +77,7 @@ Version Version
                 patch = AppVeyor.Instance.BuildNumber;
             }
 
-            return new Version(1, 9, 0, patch);
+            return new Version(1, 9, 1, patch);
         }
     }