diff --git a/docs/requirements.txt b/docs/requirements.txt
index b371094..d3123e4 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -94,7 +94,7 @@ MinimalModbus==0.7
 mistune==0.8.3
 monotonic==1.5
 Naked==0.1.31
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 netaddr==0.7.19
 netifaces==0.10.7