Merge pull request #4 from k-tamura/dependabot/pip/urllib3-1.24.2

Bump urllib3 from 1.22 to 1.24.2

Author: k-tamura

requirements.txt

@@ -9,6 +9,6 @@ Pillow==5.1.0
 psutil==5.4.3
 pytz==2018.3
 requests==2.18.4
-urllib3==1.22
+urllib3==1.24.2
 ldap3==2.5
 validate_email