diff --git a/requirements-freqai.txt b/requirements-freqai.txt
index f2d6bd5f5..e0cd09582 100644
--- a/requirements-freqai.txt
+++ b/requirements-freqai.txt
@@ -6,6 +6,8 @@
 scikit-learn==1.5.1
 joblib==1.4.2
 catboost==1.2.5; 'arm' not in platform_machine
+# Temporary downgrade of matplotlib due to https://github.com/matplotlib/matplotlib/issues/28551
+matplotlib==3.9.0
 lightgbm==4.5.0
 xgboost==2.0.3
 tensorboard==2.17.0