diff --git a/.travis.yml b/.travis.yml
index 2472ed4..ce0f49a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,31 +24,48 @@ matrix:
 
   include:
 
-    - env: LIB=assert COMMENT=trusty
+    - env: LIB=assert
       dist: trusty
       compiler: g++
 
-    - env: LIB=assert COMMENT=trusty
+    - env: LIB=assert
       dist: trusty
       compiler: clang++
 
-    - env: LIB=assert COMMENT=xenial
+    - env: LIB=assert
       dist: xenial
       compiler: g++
 
-    - env: LIB=assert COMMENT=xenial
+    - env: LIB=assert
       dist: xenial
       compiler: clang++
 
-    - env: LIB=assert COMMENT=bionic
+    - env: LIB=assert
       dist: bionic
       compiler: g++
 
-    - env: LIB=assert COMMENT=bionic
+    - env: LIB=assert
       dist: bionic
       compiler: clang++
 
     - env: LIB=assert
+      dist: focal
+      compiler: g++
+
+    - env: LIB=assert
+      dist: focal
+      compiler: clang++
+
+    - env: LIB=assert
+      os: osx
+
+    - env: LIB=mp11
+      compiler: g++
+
+    - env: LIB=mp11
+      compiler: clang++
+
+    - env: LIB=mp11
       os: osx
 
     - env: LIB=timer
diff --git a/appveyor.yml b/appveyor.yml
index dce4bae..2d6a991 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -43,6 +43,9 @@ environment:
   - TEST_BOOST_INSTALL: 1
     LIB: assert
 
+  - TEST_BOOST_INSTALL: 1
+    LIB: mp11
+
   - TEST_BOOST_INSTALL: 1
     LIB: atomic