diff --git a/.travis.yml b/.travis.yml
index 091fbf41f..363a3636b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -238,38 +238,38 @@ matrix:
       env: TOXENV=le_auto_oraclelinux6
       services: docker
       <<: *extended-test-suite
-#    - sudo: required
-#      env: TOXENV=docker_dev
-#      services: docker
-#      addons:
-#        apt:
-#          packages:  # don't install nginx and apache
-#            - libaugeas0
-#      <<: *extended-test-suite
-#    - language: generic
-#      env: TOXENV=py27
-#      os: osx
-#      # Using this osx_image is a workaround for
-#      # https://travis-ci.community/t/xcode-8-3-homebrew-outdated-error/3798.
-#      osx_image: xcode10.2
-#      addons:
-#        homebrew:
-#          packages:
-#            - augeas
-#            - python2
-#      <<: *extended-test-suite
-#    - language: generic
-#      env: TOXENV=py3
-#      os: osx
-#      # Using this osx_image is a workaround for
-#      # https://travis-ci.community/t/xcode-8-3-homebrew-outdated-error/3798.
-#      osx_image: xcode10.2
-#      addons:
-#        homebrew:
-#          packages:
-#            - augeas
-#            - python3
-#      <<: *extended-test-suite
+    - sudo: required
+      env: TOXENV=docker_dev
+      services: docker
+      addons:
+        apt:
+          packages:  # don't install nginx and apache
+            - libaugeas0
+      <<: *extended-test-suite
+    - language: generic
+      env: TOXENV=py27
+      os: osx
+      # Using this osx_image is a workaround for
+      # https://travis-ci.community/t/xcode-8-3-homebrew-outdated-error/3798.
+      osx_image: xcode10.2
+      addons:
+        homebrew:
+          packages:
+            - augeas
+            - python2
+      <<: *extended-test-suite
+    - language: generic
+      env: TOXENV=py3
+      os: osx
+      # Using this osx_image is a workaround for
+      # https://travis-ci.community/t/xcode-8-3-homebrew-outdated-error/3798.
+      osx_image: xcode10.2
+      addons:
+        homebrew:
+          packages:
+            - augeas
+            - python3
+      <<: *extended-test-suite
 
 # container-based infrastructure
 sudo: false