dependency version upgrade

requirements_dev.txt

@@ -1,21 +1,21 @@
-pip==19.2.3
+pip==21.0.1
 eve==1.1.5
 eve-swagger==0.1.3
 flask>=1.0
-jsonrpcserver==3.5.6
+jsonrpcserver==4.2.0
 gunicorn==20.0.4
 
 #https://github.com/pyeve/eve/issues/1359
 werkzeug==0.16.1
 
-Click==7.0
-bump2version==0.5.11
-wheel==0.33.6
-watchdog==0.9.0
-flake8==3.7.8
-tox==3.14.0
-coverage==4.5.4
-Sphinx==1.8.5
-twine==1.14.0
+Click==7.1.2
+bump2version==1.0.1
+wheel==0.36.2
+watchdog==2.0.2
+flake8==3.8.4
+tox==3.23.0
+coverage==5.5
+Sphinx==3.5.2
+twine==3.3.0
 pytest==4.6.5
 pytest-runner==5.1

tox.ini

@@ -25,4 +25,3 @@ deps =
 commands =
     pip install -U pip
     pytest --basetemp={envtmpdir}
-