diff --git a/.travis.yml b/.travis.yml
index 29349ed87109..b0f0fe78d6e6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,8 +13,8 @@ cache:
 branches:
     only:
         - master
-        - /\d+\.\d+\.x/
-        - /\d+\.\d+(\.\d+)?/
+        - /^\d+\.\d+\.x$/
+        - /^\d+\.\d+(\.\d+)?$/
 
 matrix:
     include: