diff --git a/requirements_dev.txt b/requirements_dev.txt
index b8b6087..9e11ec0 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,11 +1,11 @@
-pip==9.0.1
-bumpversion==0.5.3
-wheel==0.29.0
-watchdog==0.8.3
-flake8==3.3.0
-tox==2.7.0
-coverage==4.4.1
-Sphinx==1.6.3
-cryptography==2.0
-PyYAML==3.12
-simplejson==3.13.2
+pip==22.0.4
+bumpversion==0.6.0
+wheel==0.37.1
+watchdog==2.1.7
+flake8==4.0.1
+tox==3.25.0
+coverage==6.3.2
+Sphinx==4.5.0
+cryptography==37.0.1
+PyYAML==6.0
+simplejson==3.17.6