diff --git a/plot-requirements.txt b/plot-requirements.txt
index 172e5cdda..8a8d358e6 100644
--- a/plot-requirements.txt
+++ b/plot-requirements.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 plotly
-matplotlib
+matplotlib==3.7.3
 kaleido
 pandas
 pygraphviz
diff --git a/setup.py b/setup.py
index 7432b8706..ff2d5e7e4 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,14 @@
             "up-aries>=0.0.8",
             "up-symk>=0.0.3",
         ],
-        "plot": ["plotly", "matplotlib", "kaleido", "pygraphviz", "graphviz", "pandas"],
+        "plot": [
+            "plotly",
+            "matplotlib==3.7.3",
+            "kaleido",
+            "pygraphviz",
+            "graphviz",
+            "pandas",
+        ],
     },
     license="APACHE",
     keywords="planning logic STRIPS RDDL",