diff --git a/.travis.yml b/.travis.yml
index cebbdcd2..3f50e528 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,16 +13,16 @@ matrix:
  allow_failures:
    - go: master
  include:
-   - go: 1.9.x
+   - go: 1.13.x
      env:
        - TAGS="-tags travis"
-   - go: 1.10.x
+       - COVERAGE="-cover"
+   - go: 1.12.x
      env:
        - TAGS="-tags travis"
    - go: 1.11.x
      env:
        - TAGS="-tags travis"
-       - COVERAGE="-cover"
    - go: master
      env:
        - TAGS="-tags travis"
diff --git a/appveyor.yml b/appveyor.yml
index dbaa278f..7a67dc83 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -12,7 +12,7 @@ environment:
   matrix:
     - TARGET: x86_64-pc-windows-gnu
 
-stack: go 1.11
+stack: go 1.13
 
 build_script:
   - go get -v -t -race ./...