diff --git a/.devcontainer/devcontainer-lock.json b/.devcontainer/devcontainer-lock.json
index 7b14fe5..bda5bea 100644
--- a/.devcontainer/devcontainer-lock.json
+++ b/.devcontainer/devcontainer-lock.json
@@ -25,10 +25,10 @@
       "resolved": "ghcr.io/devcontainers/features/common-utils@sha256:cb0c4d3c276f157eed17935747e364178d75fee17f55c4e129966f64633deb3a",
       "integrity": "sha256:cb0c4d3c276f157eed17935747e364178d75fee17f55c4e129966f64633deb3a"
     },
-    "ghcr.io/devcontainers/features/docker-in-docker:2": {
-      "version": "2.17.0",
-      "resolved": "ghcr.io/devcontainers/features/docker-in-docker@sha256:25b9f05705ffba7dbe503230ac76081419306f8c8bc88e0ce78c4ecd99a0c78c",
-      "integrity": "sha256:25b9f05705ffba7dbe503230ac76081419306f8c8bc88e0ce78c4ecd99a0c78c"
+    "ghcr.io/devcontainers/features/docker-in-docker:4": {
+      "version": "4.0.0",
+      "resolved": "ghcr.io/devcontainers/features/docker-in-docker@sha256:4fa87399214366e320d489991769c4f3f461e1ffe461f54eea78a41b34945bb5",
+      "integrity": "sha256:4fa87399214366e320d489991769c4f3f461e1ffe461f54eea78a41b34945bb5"
     },
     "ghcr.io/devcontainers/features/git:1": {
       "version": "1.3.8",
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index aa910c0..d328985 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -24,7 +24,7 @@
     },
     "ghcr.io/devcontainers/features/git:1": {},
     "ghcr.io/devcontainers/features/github-cli:1": { "version": "2.96.0" },
-    "ghcr.io/devcontainers/features/docker-in-docker:2": {},
+    "ghcr.io/devcontainers/features/docker-in-docker:4": {},
 
     // --- Runtimes ---
     "ghcr.io/devcontainers/features/node:1": { "version": "24.18.0" },