diff --git a/.travis.yml b/.travis.yml
index 0db2ffd..39205ef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,9 @@ python:
 
 install:
     - pip install poetry
-    - poetry install
+    # Blocker: https://github.com/python-poetry/poetry/issues/1009
+    - poetry build
+    - pip install dist/*.whl
 
 script:
     - poetry run nosetests-3.4 --with-coverage --cover-package=pymispgalaxies -d
diff --git a/pyproject.toml b/pyproject.toml
index c6cb054..d6ab4c4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,6 +26,8 @@ include = ["pymispgalaxies/data/misp-galaxy/schema_*.json",
 		   "pymispgalaxies/data/misp-galaxy/vocabularies/common/*.json",
 		   "pymispgalaxies/data/misp-galaxy/vocabularies/threat-actor/*.json"]
 
+exclude = ["pymispgalaxies/data/misp-galaxy/tools/**/*"]
+
 [tool.poetry.dependencies]
 python = "^3.6"
 jsonschema = "^3.2.0"