diff --git a/.gitmodules b/.gitmodules
index 67f70e6..9dd8091 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,12 @@
 [submodule "bats-core"]
 	path = bats-core
 	url = https://github.com/bats-core/bats-core.git
+[submodule "tests/test_helper/bats-support"]
+	path = tests/test_helper/bats-support
+	url = https://github.com/bats-core/bats-support.git
+[submodule "tests/test_helper/bats-assert"]
+	path = tests/test_helper/bats-assert
+	url = https://github.com/bats-core/bats-assert.git
+[submodule "tests/test_helper/bats-file"]
+	path = tests/test_helper/bats-file
+	url = https://github.com/bats-core/bats-file.git