diff --git a/requirements.txt b/requirements.txt
index d3abd12..37f9b33 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ ptyprocess==0.6.0
 pycoax==0.4.2
 pyserial==3.4
 pyte==0.8.0
-pytn3270==0.5.0
+pytn3270==0.5.1
 sliplib==0.5.0
 sortedcontainers==2.1.0
 wcwidth==0.1.7