diff --git a/.travis.yml b/.travis.yml
index 7da4188..146ea66 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,6 @@ language: ruby
 sudo: false # taking advantage of container-based infrastructure
 cache: bundler # cache bundled gems from build to build
 rvm:
-  - 2.0
-  - 2.1
   - 2.2
   - 2.3.0
 matrix:
diff --git a/appveyor.yml b/appveyor.yml
index 98e0d1a..68dc225 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,10 +4,6 @@ skip_tags: true
 
 environment:
   matrix:
-    - ruby_version: "200"
-    - ruby_version: "200-x64"
-    - ruby_version: "21"
-    - ruby_version: "21-x64"
     - ruby_version: "22"
     - ruby_version: "22-x64"