diff --git a/requirements.txt b/requirements.txt
index 5e2a76d..8f29b43 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-more-itertools==8.7.0
+more-itertools==8.10.0
 ptyprocess==0.7.0
 pycoax==0.10.0
 pyserial==3.5
 pyte==0.8.0
-pytn3270==0.10.0
+pytn3270==0.12.0
 sliplib==0.6.2
-sortedcontainers==2.3.0
+sortedcontainers==2.4.0
 wcwidth==0.2.5