diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 0821d69..da06269 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -1,6 +1,8 @@
 name: Docker Build
 
 on:
+  schedule:
+    - cron: '0 10 1 1-12 *'
   push:
     branches:
         - main
diff --git a/Dockerfile b/Dockerfile
index 806e590..ed6e2b6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,8 +19,10 @@ RUN apt-get update && apt-get install -y \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-RUN curl -fsSL https://get.docker.com -o get-docker.sh \
-    sh get-docker.sh
+RUN curl -fsSL https://get.docker.com -o get-docker.sh && \
+    chmod +x get-docker.sh && \
+    sh get-docker.sh && \
+    rm get-docker.sh
 
 WORKDIR /runner
 
@@ -43,7 +45,6 @@ RUN ./bin/installdependencies.sh
 RUN useradd -m -s /bin/bash runner && \
     echo "runner ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
     
-RUN sudo groupadd docker
 RUN sudo usermod -aG docker runner
 
 RUN chown -R runner:runner /runner