diff --git a/.drone.yml b/.drone.yml
index 0f89046..7e158d6 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -4,7 +4,7 @@ name: mbp-fedora-kernel
 
 steps:
 - name: build
-  image: fedora:30
+  image: fedora:31
   pull: always
   volumes:
     - name: build-artifacts
diff --git a/build.sh b/build.sh
index ae59ea3..c11359d 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,6 @@
 #!/bin/sh
 
+## Update fedora docker image tag, because kernel build is using `uname -r` when defining package version variable
 FEDORA_KERNEL_BRANCH_NAME=f31
 FEDORA_KERNEL_COMMIT_HASH=a4828aea55cf33e5cacf60ec2482496cf309aa18      # Linux v5.3.11 - https://src.fedoraproject.org/rpms/kernel/commits/f31