diff --git a/.travis.yml b/.travis.yml
index d322cc253..11fabcb55 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ sudo: false
 
 go:
   - 1.3.3
-  - 1.4.2
+  - 1.4.3
   - 1.5.1
 
 os:
diff --git a/appveyor.yml b/appveyor.yml
index cc936f6f7..ec1794edd 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,18 @@ clone_folder: c:\gopath\src\github.com\restic\restic
 environment:
   GOPATH: c:\gopath;c:\gopath\src\github.com\restic\restic\Godeps\_workspace
 
+init:
+  - ps: >-
+      $app = Get-WmiObject -Class Win32_Product -Filter "Vendor = 'http://golang.org'"
+
+      if ($app) {
+        $app.Uninstall()
+      }
+
 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
   - 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
diff --git a/run_integration_tests.go b/run_integration_tests.go
index 1e0d26d2d..6b33423e3 100644
--- a/run_integration_tests.go
+++ b/run_integration_tests.go
@@ -24,6 +24,7 @@ type TravisEnvironment struct {
 func (env *TravisEnvironment) Prepare() {
 	msg("preparing environment for Travis CI\n")
 
+	run("go", "get", "golang.org/x/tools/cmd/cover")
 	run("go", "get", "github.com/mattn/goveralls")
 	run("go", "get", "github.com/mitchellh/gox")