diff --git a/_config.yml b/_config.yml
index dcd439022e937c7e17bb18a34bd70a3b0ddb996f..5a8b7b3bea3a34c52ca18dbd6eeae91af1b10ea6 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,6 +1,11 @@
 
 exclude:
   - "/vendor/"
+  - "Gemfile"
+  - "Gemfile.lock"
+  - "README.md"
+  - "LICENSE.md"
+  - "*.gemspec"
 
 keep_files:
   - "CNAME"