diff --git a/Pipfile b/Pipfile
index 7d2dfd6d58..2423afd6c0 100644
--- a/Pipfile
+++ b/Pipfile
@@ -27,7 +27,6 @@ gym = "==0.15.6"
 hypothesis = "==6.21.6"
 ipfshttpclient = "==0.8.0a2"
 liccheck = "==0.6.0"
-matplotlib = "<3.4,>=3.3.0"
 memory-profiler = "==0.57.0"
 # ^ still used?
 numpy = ">=1.18.1"
@@ -59,3 +58,5 @@ construct = "<=2.10.61"
 werkzeug = "*"
 pytest-asyncio = "*"
 multidict = "*"
+toml = "==0.10.2"
+matplotlib = "<3.4,>=3.3.0"
diff --git a/tox.ini b/tox.ini
index 5c7e1c3bf5..e53e5627d4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -477,3 +477,13 @@ deps =
     docspec==2.2.1
     docspec-python==2.2.1
 commands = {toxinidir}/scripts/generate_api_docs.py
+
+[testenv:update-dependencies]
+deps =
+    toml==0.10.2
+commands = {toxinidir}/scripts/check_dependencies.py
+
+[testenv:check-dependencies]
+deps =
+    toml==0.10.2
+commands = {toxinidir}/scripts/check_dependencies.py --check