diff --git a/tox.ini b/tox.ini
index b285c76..9c7da0e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,9 +25,9 @@ passenv =
 description = Apply coding style standards to code
 deps =
     # renovate: datasource=pypi
-    black==23.7.0
+    black==23.12.1
     # renovate: datasource=pypi
-    ruff==0.0.287
+    ruff==0.5.0
 commands =
     ruff --fix {[vars]src_path}
     black {[vars]all_path}
@@ -36,11 +36,11 @@ commands =
 description = Check code against coding style standards
 deps =
     # renovate: datasource=pypi
-    black==23.7.0
+    black==23.12.1
     # renovate: datasource=pypi
-    ruff==0.0.287
+    ruff==0.5.0
     # renovate: datasource=pypi
-    codespell==2.2.5
+    codespell==2.3.0
 commands =
     codespell {toxinidir}
     ruff {[vars]src_path}
@@ -70,7 +70,7 @@ deps =
     # renovate: datasource=pypi
     pytest==7.4.1
     # renovate: datasource=pypi
-    pytest-operator==0.32.0
+    pytest-operator==0.35.0
     tenacity==8.2.3
     git+https://github.com/juju/juju-crashdump.git
     -r{toxinidir}/requirements.txt