diff --git a/tests/unit/ps-cnb.bats b/tests/unit/ps-cnb.bats
index e12483e66..b7045ee9a 100644
--- a/tests/unit/ps-cnb.bats
+++ b/tests/unit/ps-cnb.bats
@@ -2,6 +2,12 @@
 
 load test_helper
 
+setup_file() {
+  add-apt-repository --yes ppa:cncf-buildpacks/pack-cli
+  apt-get update
+  apt-get --yes install pack-cli
+}
+
 setup() {
   global_setup
   create_app