diff --git a/.travis.yml b/.travis.yml
index da64807c..2d01abe8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -227,6 +227,29 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-trusty-6.0
 
+    - os: linux
+      compiler: clang++-7
+      env: TOOLSET=clang COMPILER=clang++-7 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-7
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-7
+
+    - os: linux
+      compiler: clang++-libc++
+      env: TOOLSET=clang COMPILER="clang++-7 -stdlib=libc++" CXXSTD=03,11,14
+      addons:
+        apt:
+          packages:
+            - clang-7
+            - libc++-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-7
+
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
       osx_image: xcode9.1