diff --git a/.travis.yml b/.travis.yml
index 4e7413a4..4ec239fa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,10 +29,6 @@ matrix:
       group: deprecated-2017Q4
       compiler: gcc
       env: BUILD_TYPE=Debug VERBOSE=1 CXX_FLAGS=-std=c++11
-    - os: linux
-      group: deprecated-2017Q4
-      compiler: clang
-      env: BUILD_TYPE=Debug VERBOSE=1
     - os: linux
       group: deprecated-2017Q4
       compiler: clang
@@ -40,16 +36,9 @@ matrix:
     - os: linux
       compiler: clang
       env: BUILD_TYPE=Release VERBOSE=1 CXX_FLAGS=-std=c++11 NO_EXCEPTION=ON NO_RTTI=ON COMPILER_IS_GNUCXX=ON
-    - os: osx
-      compiler: gcc
-      env: BUILD_TYPE=Debug VERBOSE=1
     - os: osx
       compiler: gcc
       env: BUILD_TYPE=Release VERBOSE=1 CXX_FLAGS=-std=c++11
-    - os: osx
-      compiler: clang
-      env: BUILD_TYPE=Debug VERBOSE=1
-      if: type != pull_request
     - os: osx
       env: BUILD_TYPE=Release VERBOSE=1 CXX_FLAGS=-std=c++11
       if: type != pull_request