Bump requests from 2.13.0 to 2.20.0

requirements.txt

@@ -4,18 +4,15 @@
 #
 #    pip-compile --output-file requirements.txt requirements.in
 #
-certifi==2017.1.23
+certifi==2019.11.28
 cffi==1.9.1               # via cryptography
+chardet==3.0.4            # via requests
 contexttimer==0.3.3
 cryptography==1.7.2
 cycler==0.10.0            # via matplotlib
-enum34==1.1.6             # via cryptography
-functools32==3.2.3.post2  # via matplotlib
-futures==3.0.5            # via requests-futures
 gitdb2==2.0.0             # via gitpython
 gitpython==2.1.1
-idna==2.2
-ipaddress==1.0.18         # via cryptography
+idna==2.7
 matplotlib==2.0.0
 mpld3==0.3
 numpy==1.10.4
@@ -27,12 +24,12 @@ python-dateutil==2.5.1
 pytz==2016.4              # via matplotlib
 pyyaml==3.12
 requests-futures==0.9.7
-requests==2.13.0
+requests==2.20.0
 scipy==0.17.0
 six==1.10.0               # via cryptography, cycler, matplotlib, pyopenssl, python-dateutil
 smmap2==2.0.1             # via gitdb2
-subprocess32==3.2.7       # via matplotlib
 tqdm==4.11.2
+urllib3==1.24.3           # via requests
 
 # The following packages are considered to be unsafe in a requirements file:
-# setuptools                # via cryptography
+# setuptools