diff --git a/.travis.yml b/.travis.yml
index 9e4128e..018cf56 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,16 @@
-
 language: ruby
 cache: bundler
 rvm:
-  - 2.6
-  - 2.3
+  - &ruby1 2.6.2
+  - &ruby2 2.3.8
+matrix:
+  include:
+    - rvm: *ruby1
+      env: JEKYLL_VERSION=">= 4.0.0.pre.alpha1"
+    - rvm: *ruby1
+      env: JEKYLL_VERSION="~> 3.7.0"
+    - rvm: *ruby1
+      env: JEKYLL_VERSION="~> 3.6.0"
 branches:
   only:
     - master
diff --git a/appveyor.yml b/appveyor.yml
index 9d8838c..9c6a31b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,12 +8,21 @@ build: off
 
 environment:
   matrix:
-    - RUBY_FOLDER_VER: "26-x64"
     - RUBY_FOLDER_VER: "26"
+      JEKYLL_VERSION : ">= 4.0.0.pre.alpha1"
     - RUBY_FOLDER_VER: "23"
+      JEKYLL_VERSION : ">= 4.0.0.pre.alpha1"
+    - RUBY_FOLDER_VER: "26"
+      JEKYLL_VERSION : "~> 3.7.0"
+    - RUBY_FOLDER_VER: "23"
+      JEKYLL_VERSION : "~> 3.7.0"
+    - RUBY_FOLDER_VER: "26"
+      JEKYLL_VERSION : "~> 3.6.0"
+    - RUBY_FOLDER_VER: "23"
+      JEKYLL_VERSION : "~> 3.6.0"
 
 install:
-  - SET PATH=C:\Ruby%RUBY_FOLDER_VER%\bin;%PATH%
+  - SET PATH=C:\Ruby%RUBY_FOLDER_VER%-x64\bin;%PATH%
   - bundle install --retry 5 --jobs=%NUMBER_OF_PROCESSORS% --clean --path vendor\bundle
 
 test_script: