diff --git a/.travis.yml b/.travis.yml
index 52530bac2..d57c47d47 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ go:
   - 1.3.3
   - 1.4.3
   - 1.5.3
-  - 1.6beta2
+  - 1.6rc1
 
 os:
   - linux
diff --git a/appveyor.yml b/appveyor.yml
index ec1794edd..c8746dff8 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,8 +13,8 @@ init:
 
 install:
   - rmdir c:\go /s /q
-  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.5.1.windows-amd64.msi
-  - msiexec /i go1.5.1.windows-amd64.msi /q
+  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.5.3.windows-amd64.msi
+  - msiexec /i go1.5.3.windows-amd64.msi /q
   - go version
   - go env
   - appveyor DownloadFile http://downloads.sourceforge.net/project/gnuwin32/tar/1.13-1/tar-1.13-1-bin.zip -FileName tar.zip