diff --git a/Makefile b/Makefile
index 57bf401..82a29ab 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # CONTAINER_RUNTIME
 # The CONTAINER_RUNTIME variable will be used to specified the path to a
 # container runtime. This is needed to start and run a container image.
-CONTAINER_RUNTIME?=$(shell which docker)
+CONTAINER_RUNTIME?=$(shell which podman)
 
 # CERTBOT_IMAGE_REGISTRY_NAME
 # Defines the name of the new container to be built using several variables.