diff --git a/requirements.txt b/requirements.txt
index 849405d..8be11a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ msoffcrypto-tool>=5.0.0
 tqdm>=4.65.0
 streamlit>=1.24.0
 python-docx>=0.8.11
+tk>=0.1.0