diff --git a/docker/Dockerfile.legacy b/docker/Dockerfile.legacy
index 03c6e52d4..89c643049 100644
--- a/docker/Dockerfile.legacy
+++ b/docker/Dockerfile.legacy
@@ -1,5 +1,5 @@
 # Simple Dockerfile for Terraphim Server
-FROM ubuntu:22.04
+FROM ubuntu:26.04
 
 ARG RUST_VERSION=1.87.0
 
diff --git a/docker/Dockerfile.simple b/docker/Dockerfile.simple
index 274ff8e68..04f00eda2 100644
--- a/docker/Dockerfile.simple
+++ b/docker/Dockerfile.simple
@@ -1,5 +1,5 @@
 # Simple Dockerfile for building Terraphim binaries
-FROM ubuntu:24.04
+FROM ubuntu:26.04
 
 ARG RUST_VERSION=1.85.0