diff --git a/cloud_run/processing/main.py b/cloud_run/processing/main.py
index e56c35b..641da20 100644
--- a/cloud_run/processing/main.py
+++ b/cloud_run/processing/main.py
@@ -12,7 +12,6 @@ import os
 
 import matplotlib
 matplotlib.use("Agg")
-import matplotlib.colormaps
 import numpy as np
 from fastapi import FastAPI, Header, HTTPException
 from PIL import Image, ImageDraw, ImageFont
diff --git a/cloud_run/processing/requirements.txt b/cloud_run/processing/requirements.txt
index 02c6bfc..8c14492 100644
--- a/cloud_run/processing/requirements.txt
+++ b/cloud_run/processing/requirements.txt
@@ -2,7 +2,7 @@ fastapi>=0.115.0
 uvicorn[standard]>=0.30.0
 pillow>=10.0
 numpy>=1.26
-matplotlib==3.9.4
+matplotlib>=3.5
 scipy>=1.11
 reportlab>=4.0
 pydantic>=2.0