diff --git a/.travis.yml b/.travis.yml
index fea48f50..49663798 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ dist: xenial   # required for Python >= 3.7
 language: python
 python: "3.7"
 before_install:
-  - pip install poetry
+  - pip install poetry~=0.12.17
 install:
   # we run `poetry version` here to appease poetry about '0.0.0-source'
   - poetry version
@@ -11,7 +11,7 @@ script:
   - poetry run python --version
   - poetry run behave
 before_deploy:
-  - pip install poetry
+  - pip install poetry~=0.12.17
   - poetry config http-basic.pypi $PYPI_USER $PYPI_PASS
   - poetry version $TRAVIS_TAG
   - poetry build