travis: fix build using --ignore-installed option for coveralls install

Signed-off-by: Graeme Watt <graeme.watt@durham.ac.uk>
HEPData · Jun 18, 2019 · 1f566f8 · 1f566f8
1 parent 18bb94e
commit 1f566f8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -12,7 +12,7 @@ services:
 install:
   - sudo pip install --upgrade pip
   - sudo pip install coverage
-  - sudo pip install coveralls
+  - sudo pip install --ignore-installed coveralls
 
 script:
   - export CURRENT_PATH=`pwd`