diff --git a/.circleci/config.yml b/.circleci/config.yml
index b587ff42..5d8c14ab 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,7 +15,7 @@ jobs:
     docker:
       # Use the python image, all we really care about is the preinstalled
       # tools in a circleci image.
-      - image: cimg/python:3.9
+      - image: cimg/python:3.11
     steps:
       - setup_remote_docker
       - checkout
diff --git a/Dockerfile b/Dockerfile
index e661e216..905d65cd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-FROM python:3.9
+FROM python:3.11
 
 EXPOSE 9000
 ENTRYPOINT ["lando-cli"]
diff --git a/Dockerfile-dev b/Dockerfile-dev
index 5d8a05d6..731a2191 100644
--- a/Dockerfile-dev
+++ b/Dockerfile-dev
@@ -2,7 +2,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-FROM python:3.9 as python_base
+FROM python:3.11 as python_base
 
 # Install the Rust toolchain. Some packages do not have pre-built wheels (e.g.
 # rs-parsepatch) and require this in order to compile.