diff --git a/.travis.yml b/.travis.yml
index a0f98f95e..e91ec5a99 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,14 +8,14 @@ env:
 
 jobs:
     include:
-      -os: osx
-        osx_image: xcode12.2
-      -os: linux
-      
+        - os: osx
+          osx_image: xcode12.2
+        - os: linux
+          dist: xenial
 
 before_install:
     - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
-    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install p7zip; fi
+    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install --build-from-source p7zip; fi
     - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -qq update; fi
     - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install -y p7zip-full; fi