diff --git a/docker/buildx/ubuntu/Dockerfile b/docker/buildx/ubuntu/Dockerfile
index e005a0015e9a..8d6fc8b1fbb2 100644
--- a/docker/buildx/ubuntu/Dockerfile
+++ b/docker/buildx/ubuntu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:22.04 as builder
+FROM ubuntu:20.04 as builder
 
 ARG CARGO_PROFILE
 ARG FEATURES
@@ -7,6 +7,11 @@ ARG OUTPUT_DIR
 ENV LANG en_US.utf8
 WORKDIR /greptimedb
 
+# Add PPA for Python 3.10.
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y software-properties-common && \
+    add-apt-repository ppa:deadsnakes/ppa -y
+
 # Install dependencies.
 RUN --mount=type=cache,target=/var/cache/apt \
     apt-get update && apt-get install -y \
diff --git a/docker/dev-builder/ubuntu/Dockerfile b/docker/dev-builder/ubuntu/Dockerfile
index afefe2a20a93..b117d6f0f409 100644
--- a/docker/dev-builder/ubuntu/Dockerfile
+++ b/docker/dev-builder/ubuntu/Dockerfile
@@ -1,8 +1,13 @@
-FROM ubuntu:22.04
+FROM ubuntu:20.04
 
 ENV LANG en_US.utf8
 WORKDIR /greptimedb
 
+# Add PPA for Python 3.10.
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y software-properties-common && \
+    add-apt-repository ppa:deadsnakes/ppa -y
+
 # Install dependencies.
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
     libssl-dev \