diff --git a/.travis.yml b/.travis.yml
index f91628c..69c0c28 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,14 +25,14 @@ matrix:
   include:
     - compiler: clang
       env: TOOLSET=clang-3.4
-    #- compiler: clang
-    #  env: TOOLSET=clang-3.5
-    #- compiler: gcc
-    #  env: TOOLSET=gcc-4.7
-    #- compiler: gcc
-    #  env: TOOLSET=gcc-4.8
-    #- compiler: gcc
-    #  env: TOOLSET=gcc-4.9
+    - compiler: clang
+      env: TOOLSET=clang-3.5
+    - compiler: gcc
+      env: TOOLSET=gcc-4.7
+    - compiler: gcc
+      env: TOOLSET=gcc-4.8
+    - compiler: gcc
+      env: TOOLSET=gcc-4.9
 
 before_install: wget "https://raw.githubusercontent.com/boostorg/regression/develop/ci/src/script.py"
 install: python script.py travis_install