diff --git a/entrypoint.sh b/entrypoint.sh
index 8a71c68..2d877c9 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -19,7 +19,7 @@ WORKDIR=${SRCDIR:-/src}
 
 SPEC_FILE="${SRCDIR}/${4}"
 
-pip install --upgrade pip wheel setuptools
+python -m pip install --upgrade pip wheel setuptools
 
 #
 # In case the user specified a custom URL for PYPI, then use