diff --git a/appveyor.yml b/appveyor.yml
index 77e1c7b8..7e6b5324 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,7 +5,7 @@ os: Windows Server 2012 R2
 environment:
   GOPATH: c:\gopath
   CGO_ENABLED: 0
-  TIMESCALE_FACTOR: 20
+  TIMESCALE_FACTOR: 40
   matrix:
     - GOARCH: 386
     - GOARCH: amd64