diff --git a/.travis.yml b/.travis.yml
index a4906355..7883f22e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,7 @@ before_install:
 
 install:
   - pip install pipx
-  - pipx install --upgrade poetry
+  - pipx install poetry
   - poetry install
   - poetry run python --version