diff --git a/.travis.yml b/.travis.yml
index 040a943540ac27b11b9fe967cd982838c57d653c..00ff31932011a0a230296d332f6b1107098392fa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,7 @@ before_install:
   - conda info -a
 install:
   - conda config --add channels conda-forge
-  - conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION obspy pycurl nose flake8 coverage webtest
+  - conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION obspy pycurl nose flake8 coverage webtest 'icu=58.*'
   - source activate test-environment
 script:
   - flake8 --config=.flake8 bin/ geomagio/ test/