Force pip version to 20.1 to avoid build issues

See pypa/pip#7309. Using --install-option and either of --prefix or --install-lib results in an error starting at pip 20.2.
pingtimeout · Sep 25, 2020 · b45601e · b45601e
1 parent 9a6629c
commit b45601e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Dockerfile b/Dockerfile
@@ -24,7 +24,7 @@ RUN apt-get update && apt-get install -y \
     unzip \
     wget
 
-RUN pip install --upgrade pip
+RUN pip install --upgrade pip==20.1
 RUN pip install \
     six \
     urllib3 \