diff --git a/.travis.yml b/.travis.yml
index 9a6236bed..13a23e8ff 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ env:
 
 matrix:
     include:
-        - python: 2.7
+        - python: 2.7.13
           env: {TOX_ENV: py27-cov, COVERAGE: 1}
         - python: 2.7_with_system_site_packages
           env: {TOX_ENV: py27-test}
@@ -25,7 +25,7 @@ matrix:
         #   - env: {TOX_ENV: pypy-test}
         - python: 3.4
           env: {TOX_ENV: py34-flake8}
-        - python: 2.7
+        - python: 2.7.13
           env: {TOX_ENV: docs}
 # Non-Python dependencies.
 addons: