diff --git a/.travis.yml b/.travis.yml
index 9d5b701..2a82ec0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,7 +25,7 @@ install:
  - travis_retry cabal update
  - cabal install alex happy
  - cabal install yesod-bin
- - cabal install --only-dependencies
+ - cabal install --only-dependencies || cabal install --only-dependencies -j1
 
 # Here starts the actual work to be performed for the package under test; any command which exits with a non-zero exit code causes the build to fail.
 script: