diff --git a/requirements.txt b/requirements.txt
index 9b0d6cba059..7d24d5a0901 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ autograd<1.5
 graph-scheduler>=0.2.0, <1.1.1
 dill<=0.32
 elfi<0.8.4
-graphviz<0.20.0
+graphviz<0.21.0
 grpcio<1.43.0
 grpcio-tools<1.43.0
 llvmlite<0.39
diff --git a/tutorial_requirements.txt b/tutorial_requirements.txt
index 728aa0c0eab..5fe2264c368 100644
--- a/tutorial_requirements.txt
+++ b/tutorial_requirements.txt
@@ -1,3 +1,3 @@
-graphviz<0.20.0
+graphviz<0.21.0
 jupyter<=1.0.0
 matplotlib<3.5.2