diff --git a/Makefile b/Makefile
index 1740431..919602a 100644
--- a/Makefile
+++ b/Makefile
@@ -40,6 +40,10 @@ preseed:
 verify:
 	./src/verify.sh
 
+.PHONY: all-tests
+all-tests:
+	./src/run-tests.sh
+
 .PHONY: digests
 digests:
 	./src/digests.sh
diff --git a/src/run-tests.sh b/src/run-tests.sh
new file mode 100755
index 0000000..1f74c97
--- /dev/null
+++ b/src/run-tests.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+set -eu
+
+pkgs=$(grep -rnw ./packages/*/Containerfile -e "^FROM.*test$" | awk -F":" '{print $1}' | tr '\n' ' ')
+
+for containerfile in $pkgs; do
+  docker build --target test - <$containerfile
+done