diff --git a/Dockerfile b/Dockerfile
index 44259d2d42..136634d380 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,7 @@ ADD package.json .
 RUN yarn webui:install --production --network-timeout 60000
 RUN yarn webui:build
 
-# Stage 2: Build Locust package
+# Stage 2: Build Locust package (make sure any changes here are also reflected in Dockerfile.ci)
 FROM python:3.12-slim AS base
 
 FROM base AS builder
diff --git a/Dockerfile.ci b/Dockerfile.ci
index 271aa497bc..fb709a986e 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -1,7 +1,7 @@
 # This is the image pushed to Dockerhub, containing the built and tested Locust package
 
 # Stage 1: Install Locust package
-FROM python:3.11-slim AS base
+FROM python:3.12-slim AS base
 
 FROM base AS builder
 RUN apt-get update && apt-get install -y git