diff --git a/requirements.txt b/requirements.txt
index 9ec91bb..0307cc2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 python-docx>=0.8.11
-PyMuPDF>=1.22.0
+PyPDF2>=1.26.0
 ebooklib>=0.17.1
-tkinter>=8.6
+PyQt5>=5.15.0
 requests>=2.28.0
 beautifulsoup4>=4.11.0
 pillow>=9.0.0
\ No newline at end of file