diff --git a/.gitignore b/.gitignore
index 4e99fc2..a8491ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ initrd
 bzImage
 linux-*.tar.xz
 linux.tar.xz
+cc-test-reporter
 
 # Test binary, built with `go test -c`
 *.test
diff --git a/.travis.yml b/.travis.yml
index 556cc0e..481b908 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ before_script:
   - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
   - chmod +x ./cc-test-reporter
   - ./cc-test-reporter before-build
-  - go get github.com/mattn/goveralls
+  - GO111MODULE=off go get github.com/mattn/goveralls
 script:
   # HACK: /dev/kvm is root:kvm 0660 by default
   - sudo chmod 666 /dev/kvm
diff --git a/go.mod b/go.mod
index cafe085..cf26786 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/nmi/gokvm
 
-go 1.13
+go 1.15