Merge pull request #2161 from docker/bump_requests

Bump requests dependency in requirements.txt (CVE-2018-18074)

requirements.txt

@@ -14,7 +14,7 @@ pyOpenSSL==18.0.0
 pyparsing==2.2.0
 pypiwin32==219; sys_platform == 'win32' and python_version < '3.6'
 pypiwin32==223; sys_platform == 'win32' and python_version >= '3.6'
-requests==2.14.2
+requests==2.20.0
 six==1.10.0
 websocket-client==0.40.0
 urllib3==1.21.1; python_version == '3.3'
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