diff --git a/.travis.yml b/.travis.yml
index b773dd1..23f102d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,13 +10,13 @@ matrix:
       compiler: clang
       env: COMPILER='clang++' CXX_FLAGS='-std=c++11'
 
-    - os: linux
-      compiler: gcc
-      env: COMPILER='g++' CXX_FLAGS='-std=c++11'
+#   - os: linux
+#     compiler: gcc
+#     env: COMPILER='g++' CXX_FLAGS='-std=c++11'
 
-    - os: linux
-      compiler: clang
-      env: COMPILER='clang++' CXX_FLAGS='-std=c++11'
+#   - os: linux
+#     compiler: clang
+#     env: COMPILER='clang++' CXX_FLAGS='-std=c++11'
 
     - os: linux
       compiler: gcc
@@ -68,25 +68,25 @@ matrix:
             - g++-8
       env: COMPILER='g++-8' CXX_FLAGS='-std=c++17'
 
-    - os: linux
-      compiler: clang
-      addons:
-        apt:
-          sources: 
-            - llvm-toolchain-trusty-3.9
-          packages:
-            - clang-3.9
-      env: COMPILER='clang++-3.9' CXX_FLAGS='-std=c++11'
+#   - os: linux
+#     compiler: clang
+#     addons:
+#       apt:
+#         sources: 
+#           - llvm-toolchain-trusty-3.9
+#         packages:
+#           - clang-3.9
+#     env: COMPILER='clang++-3.9' CXX_FLAGS='-std=c++11'
 
-    - os: linux
-      compiler: clang
-      addons:
-        apt:
-          sources: 
-            - llvm-toolchain-trusty-4.0
-          packages:
-            - clang-4.0
-      env: COMPILER='clang++-4.0' CXX_FLAGS='-std=c++11'
+#   - os: linux
+#     compiler: clang
+#     addons:
+#       apt:
+#         sources: 
+#           - llvm-toolchain-trusty-4.0
+#         packages:
+#           - clang-4.0
+#     env: COMPILER='clang++-4.0' CXX_FLAGS='-std=c++11'
 
     - os: linux
       compiler: clang