diff --git a/RTOC/RTLogger/requirenments.txt b/RTOC/RTLogger/requirenments.txt
index bc76836..4248f05 100644
--- a/RTOC/RTLogger/requirenments.txt
+++ b/RTOC/RTLogger/requirenments.txt
@@ -85,7 +85,7 @@ MarkupSafe==1.0
 matplotlib==2.2.2
 mccabe==0.6.1
 MinimalModbus==0.7
-mistune==0.8.3
+mistune==2.0.3
 monotonic==1.5
 Naked==0.1.31
 nbconvert==5.3.1