diff --git a/Dockerfile b/Dockerfile
index 9cfc2f3..10ade14 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,7 @@ FROM ubuntu:jammy
 LABEL author="https://github.com/aBARICHELLO/godot-ci/graphs/contributors"
 
 USER root
+SHELL ["/bin/bash", "-c"]
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ca-certificates \
diff --git a/mono.Dockerfile b/mono.Dockerfile
index 95d7c1f..6dae860 100644
--- a/mono.Dockerfile
+++ b/mono.Dockerfile
@@ -2,6 +2,7 @@ FROM mono:latest
 LABEL author="https://github.com/aBARICHELLO/godot-ci/graphs/contributors"
 
 USER root
+SHELL ["/bin/bash", "-c"]
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ca-certificates \