diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3de3dd5b..ce67445d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,21 +1,24 @@
 # Static analysis tools
 flake8==3.8.3
 flake8-annotations-coverage==0.0.4
-flake8-cognitive-complexity==0.0.2
+flake8-cognitive-complexity==0.1.0
 flake8-comprehensions==3.2.3
-flake8-polyfill==1.0.2
-flake8-json
-flake8-isort==3.0.1
-pep8-naming==0.11.1
-flake8-noqa==1.0.5
 flake8-docstrings==1.5.0
+isort==5.5.2
+flake8-isort==4.0.0
+flake8-json==19.8.0
+flake8-noqa==1.0.5
+flake8-pep3101==1.3.0
+flake8-polyfill==1.0.2
 flake8-use-fstring==1.1
 
+pep8-naming==0.11.1
+
 # Code formatting tools
-autopep8==1.5.3
+autopep8==1.5.4
 
 # HTML changelogs
-grip==4.5.2
+grip>=4.5.2
 
 # Packaging
 # This isn't available via 'pip install', so has to be commented out in order for