diff --git a/appveyor.yml b/appveyor.yml
index 9e4ac855..2fe407f4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,3 @@
-# https://www.appveyor.com/docs/appveyor-yml
-
 version: "{build}"
 
 clone_depth: 10
@@ -13,31 +11,24 @@ build: off
 
 install:
   - SET PATH=C:\Ruby%RUBY_FOLDER_VER%\bin;%PATH%
-  - bundle install --retry 5
+  - bundle install --retry 5 --jobs=%NUMBER_OF_PROCESSORS% --clean --path vendor\bundle
 
 environment:
   BUNDLE_WITHOUT: "benchmark:site:development"
   matrix:
     - RUBY_FOLDER_VER: "23"
-      GEMS_FOLDER_VER: "2.3.0"
       TEST_SUITE: "test"
     - RUBY_FOLDER_VER: "23"
-      GEMS_FOLDER_VER: "2.3.0"
       TEST_SUITE: "cucumber"
     - RUBY_FOLDER_VER: "23"
-      GEMS_FOLDER_VER: "2.3.0"
       TEST_SUITE: "fmt"
     - RUBY_FOLDER_VER: "23"
-      GEMS_FOLDER_VER: "2.3.0"
       TEST_SUITE: "default-site"
     - RUBY_FOLDER_VER: "23-x64"
-      GEMS_FOLDER_VER: "2.3.0"
       TEST_SUITE: "test"
     - RUBY_FOLDER_VER: "22"
-      GEMS_FOLDER_VER: "2.2.0"
       TEST_SUITE: "test"
     - RUBY_FOLDER_VER: "21"
-      GEMS_FOLDER_VER: "2.1.0"
       TEST_SUITE: "test"
 
 test_script:
@@ -48,5 +39,4 @@ test_script:
 
 cache:
   # If one of the files after the right arrow changes, cache will be skipped
-  - C:\Ruby%RUBY_FOLDER_VER%\bin -> Gemfile,jekyll.gemspec,appveyor.yml
-  - C:\Ruby%RUBY_FOLDER_VER%\lib\ruby\gems\%GEMS_FOLDER_VER% -> Gemfile,jekyll.gemspec,appveyor.yml
+  - 'vendor\bundle -> appveyor.yml,Gemfile,jekyll.gemspec'
diff --git a/script/default-site b/script/default-site
index 006fd93b..5e96a991 100755
--- a/script/default-site
+++ b/script/default-site
@@ -10,7 +10,7 @@ rm -Rf ./tmp/default-site
 workdir=$(pwd)
 
 echo "$0: creating new default site"
-bundle exec exe/jekyll new tmp/default-site
+bundle exec ruby exe/jekyll new tmp/default-site
 pushd tmp/default-site
 
 echo "$0: respecifying the jekyll install location"