update dependencies

requirements.txt

@@ -3,44 +3,46 @@ asn1crypto==0.24.0
 backports.csv==1.0.6
 beautifulsoup4==4.7.1
 blinker==1.4
-certifi==2018.11.29
+certifi==2019.6.16
 cffi==1.11.5
 chardet==3.0.4
 Click==7.0
 clint==0.5.1
-cryptography==2.5
+cryptography==2.7
 docopt==0.6.2
-Flask==1.0.2
+Flask==1.1.1
 Flask-Limiter==1.0.1
 Flask-Session==0.3.1
 gunicorn==19.9.0
 html2text==2018.1.9
 idna==2.8
 internetarchive==1.8.1
 itsdangerous==1.1.0
-Jinja2==2.10
+Jinja2==2.10.1
 joblib==0.13.2
 jsonlines==1.2.0
 jsonpatch==1.23
 jsonpointer==2.0
-libsass==0.17.0
+libsass==0.19.2
 limits==1.3
-lxml==4.3.1
-markovify==0.7.1
+lxml==4.3.4
+markovify==0.7.2
 MarkupSafe==1.1.0
-peewee==3.8.2
-Pillow==5.4.1
+peewee==3.9.6
+Pillow==6.1.0
+pkg-resources==0.0.0
 pycparser==2.19
 PyMySQL==0.9.3
-python-slugify==2.0.1
+python-slugify==3.0.2
 raven==6.10.0
-redis==3.2.0
-requests==2.21.0
-sacremoses==0.0.7
+redis==3.2.1
+requests==2.22.0
+sacremoses==0.0.19
 schema==0.6.8
 six==1.12.0
 soupsieve==1.8
-tqdm==4.31.1
+text-unidecode==1.2
+tqdm==4.32.2
 Unidecode==1.0.22
-urllib3==1.24.1
-Werkzeug==0.14.1
+urllib3==1.25.3
+Werkzeug==0.15.4