diff --git a/oec/tn3270.py b/oec/tn3270.py
index 2c4fa04..19af5a4 100644
--- a/oec/tn3270.py
+++ b/oec/tn3270.py
@@ -221,6 +221,10 @@ class TN3270Session(Session):
         if byte == 0x40 and cell.formatting is not None and cell.formatting.reverse:
             return encode_ascii_character(ord('#'))
 
+        # TODO: Temporary workaround until character set support is added.
+        if cell.character_set is not None:
+            return encode_ascii_character(ord('ß'))
+
         return encode_ebcdic_character(byte)
 
     def _format_message_area(self):
diff --git a/requirements.txt b/requirements.txt
index 25468e9..0ca5fa2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ ptyprocess==0.7.0
 pycoax==0.6.0
 pyserial==3.5
 pyte==0.8.0
-pytn3270==0.8.0
+pytn3270==0.9.0
 sliplib==0.6.2
 sortedcontainers==2.3.0
 wcwidth==0.2.5