Merge pull request #6 from ipregistry/dependabot/pip/urllib3-1.25.9

Bump urllib3 from 1.25.3 to 1.25.9

Author: Laurent Pellegrino

requirements.txt

@@ -10,4 +10,4 @@ chardet==3.0.4            # via requests
 idna==2.8                 # via requests
 requests==2.22.0
 six==1.12.0
-urllib3==1.25.3           # via requests
+urllib3==1.25.9           # via requests