diff --git a/Dockerfile b/Dockerfile
index 5947134..3c734ce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # which is used in GitHub Actions CI for this repository
 # (see .github/workflows/ci.yaml).
 
-FROM python:3.8
+FROM python:3.10
 
 RUN apt-get update
 RUN apt-get install -y \