Update requirements.txt

requirements.txt

@@ -9,7 +9,7 @@ autopep8==1.5.4
 backcall==0.2.0
 backports.csv==1.0.7
 beautifulsoup4==4.9.1
-bleach==3.2.1
+bleach==3.3.0
 bs4==0.0.1
 cachetools==4.1.1
 certifi==2020.6.20
@@ -20,7 +20,7 @@ click==7.1.2
 configobj==5.0.6
 convertapi==1.4.0
 crcmod==1.7
-cryptography==3.1.1
+cryptography==3.3.2
 decorator==4.4.2
 distlib==0.3.1
 gast==0.4.0
@@ -34,7 +34,7 @@ hpack==3.0.0
 hstspreload==2020.10.6
 html-text==0.5.2
 httpcore==0.9.1
-httplib2==0.18.1
+httplib2==0.19.0
 httpx==0.13.3
 humanize==3.1.0
 hyperframe==5.2.0
@@ -50,7 +50,7 @@ Keras-Applications==1.0.8
 Keras-Preprocessing==1.1.2
 lazy-object-proxy==1.4.3
 libcst==0.3.13
-lxml==4.6.1
+lxml==4.6.3
 Markdown==3.3.2
 MarkupSafe==1.1.1
 mccabe==0.6.1
@@ -77,7 +77,7 @@ python-jsonrpc-server==0.4.0
 python-language-server==0.35.1
 python-magic==0.4.18
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4.0
 pyzbar==0.1.8
 requests==2.24.0
 rfc3986==1.4.0
@@ -89,7 +89,7 @@ soupsieve==2.0.1
 speedtest-cli==2.1.2
 sqlparse==0.2.4
 tensorboard==1.14.0
-tensorflow==2.5.0
+tensorflow==2.4.2
 tensorflow-estimator==1.14.0
 terminaltables==3.1.0
 toml==0.10.1