diff --git a/backend/requirements.txt b/backend/requirements.txt
index f322228c..fd66f596 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -45,6 +45,7 @@ numpy>=1.24.0
 
 # Image/media for podcast
 Pillow>=10.0.0
+matplotlib>=3.8.0
 huggingface_hub>=1.1.4
 
 # TTS for podcast