diff --git a/requirements.txt b/requirements.txt
index 4bfa991..b68aaca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 rdflib>=6.0.1
 networkx>=2.6.3
-matplotlib>=3.4.3
+matplotlib==3.5.2
 SpeechRecognition>=3.10.0
 moviepy>=1.0.3
 opencv-python>=4.5.5.62