diff --git a/.gitea/runners/Dockerfile b/.gitea/runners/Dockerfile
index 55b0e70..30354bd 100644
--- a/.gitea/runners/Dockerfile
+++ b/.gitea/runners/Dockerfile
@@ -1,15 +1,18 @@
 FROM node:22-bullseye
 
+# Install Docker CLI + Compose V2 plugin from Docker's official apt repo
+# (Debian's own docker.io package ships an outdated Docker version and
+# does not include the compose plugin at all).
 RUN apt-get update \
-    && apt-get install -y docker.io curl \
+    && apt-get install -y ca-certificates curl gnupg \
+    && install -m 0755 -d /etc/apt/keyrings \
+    && curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc \
+    && chmod a+r /etc/apt/keyrings/docker.asc \
+    && echo \
+       "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian bullseye stable" \
+       | tee /etc/apt/sources.list.d/docker.list > /dev/null \
+    && apt-get update \
+    && apt-get install -y docker-ce-cli docker-compose-plugin \
     && rm -rf /var/lib/apt/lists/*
 
-RUN corepack enable
-
-# Install Docker Compose V2 as a CLI plugin (docker.io package does not
-# include it, and the npm "docker-compose" package is an unrelated
-# legacy wrapper that does not provide the `docker compose` subcommand).
-RUN mkdir -p /usr/libexec/docker/cli-plugins \
-    && curl -SL "https://github.com/docker/compose/releases/latest/download/docker-compose-linux-x86_64" \
-       -o /usr/libexec/docker/cli-plugins/docker-compose \
-    && chmod +x /usr/libexec/docker/cli-plugins/docker-compose
\ No newline at end of file
+RUN corepack enable
\ No newline at end of file