diff --git a/docker/edge/Dockerfile b/docker/edge/Dockerfile
index 0611426..9ef0c7a 100644
--- a/docker/edge/Dockerfile
+++ b/docker/edge/Dockerfile
@@ -1,4 +1,4 @@
 FROM caddy:latest
-RUN apt-get update && apt-get install -y bash jq curl git docker.io && rm -rf /var/lib/apt/lists/*
+RUN apk add --no-cache bash jq curl git docker-cli python3
 COPY entrypoint-edge.sh /usr/local/bin/entrypoint-edge.sh
 ENTRYPOINT ["bash", "/usr/local/bin/entrypoint-edge.sh"]
diff --git a/docker/edge/dispatcher.sh b/docker/edge/dispatcher.sh
index f8eda5a..18beb69 100755
--- a/docker/edge/dispatcher.sh
+++ b/docker/edge/dispatcher.sh
@@ -462,7 +462,7 @@ launch_runner() {
 
   # Create temp file for logs
   local log_file
-  log_file=$(mktemp /tmp/dispatcher-logs-XXXXXX.txt)
+  log_file=$(mktemp /tmp/dispatcher-logs-XXXXXX)
   trap 'rm -f "$log_file"' RETURN
 
   # Execute with array expansion (safe from shell injection)