diff --git a/ci/merge-artifacts.sh b/ci/merge-artifacts.sh
index 03fae48..87511cd 100755
--- a/ci/merge-artifacts.sh
+++ b/ci/merge-artifacts.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # Helper script executed on CI once all builds have completed. This takes
 # `wasi-toolchain-*` artifacts and `wasi-sysroot-*` artifacts and merges