diff --git a/.github/actions/people/Dockerfile b/.github/actions/people/Dockerfile
index 263f03c9d..fa4197e6a 100644
--- a/.github/actions/people/Dockerfile
+++ b/.github/actions/people/Dockerfile
@@ -1,6 +1,6 @@
 FROM python:3.7
 
-RUN pip install httpx PyGithub "pydantic==1.5.1" "pyyaml>=5.3.1,6.0.0"
+RUN pip install httpx PyGithub "pydantic==1.5.1" "pyyaml>=5.3.1,<6.0.0"
 
 COPY ./app /app