Ensure requirements.txt is up to date
diff --git a/Dockerfile b/Dockerfile
index e7cbe40..46f538b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -78,7 +78,8 @@
COPY --from=pelican-asf /tmp/pelican-asf .
COPY requirements.txt .
-RUN pip install -r requirements.txt
+# Don't automatically load dependencies; please add them to requirements.txt instead
+RUN pip install -r requirements.txt --no-deps
# If the site needs authtokens to build, copy them into the file .authtokens
# and it will be picked up at build time
