diff --git a/Dockerfile b/Dockerfile
index fd54f1f..2c148ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM ubuntu:latest
+FROM ubuntu:22.04
 
 RUN apt update
-RUN apt install python3 python3-pip -y
+RUN apt install python3.10 python3-pip -y 
 
 ##################################################
 # Ubuntu setup
diff --git a/README.md b/README.md
index 9f324ff..3993d00 100644
--- a/README.md
+++ b/README.md
@@ -205,6 +205,10 @@ devices:
 ```
 
 ## Changelog
+
+- v0.4.0
+  - Update default Base and Python in Dockerfile to `ubuntu:22.04` and `python3.10`
+
 - v0.3.4
   - Inclusion of `secrets` and `build-args` in `odtp.yml`
   - Tools as list