diff --git a/.travis.yml b/.travis.yml
index 8f72f9439..1c0a256ed 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,8 +11,7 @@ before_install:
   - git fetch --depth=1000
   - python misc/build_helpers/show-tool-versions.py
 install:
-  - pip install 'coverage==3.7.1'  # see https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2511
-  - pip install coveralls
+  - pip install coverage coveralls
 before_script: python setup.py build
 script: bin/tahoe @coverage run --branch --source=src/allmydata @tahoe --version-and-path debug trial --rterrors --reporter=timing
 after_success: