diff --git a/.travis.yml b/.travis.yml
index 9f5ee248..45e6260d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,8 +23,8 @@ dist:
 osx_image:
 - xcode9.4.1  # macOS 10.13
 - xcode10.3   # macOS 10.14.4
-- xcode11.3   # macOS 10.14.6
-- xcode12.2   # macOS 11.0
+- xcode11.6   # macOS 10.14.6
+- xcode12.2   # macOS 10.15.7
 
 env:
 - PYTHON_BUILD_VERSION=3.9.1