diff --git a/server/Dockerfile b/server/Dockerfile
index d3f8a38..68aa1fc 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.13.0b1-slim
+FROM python:3.9-slim
 
 WORKDIR /app
 
diff --git a/server/requirements.txt b/server/requirements.txt
index d411aee..0399247 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -3,4 +3,4 @@ flask-cors
 pandas
 pillow
 requests
-numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file
+numpy
\ No newline at end of file