diff --git a/.gitmodules b/.gitmodules
index f0aac96..9895ebe 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -19,3 +19,6 @@
 [submodule "aws/fargate_service"]
 	path = aws/fargate_service
 	url = git@github.com:codeforamerica/tofu-modules-aws-fargate-service.git
+[submodule "aws/serverless_database"]
+	path = aws/serverless_database
+	url = git@github.com:codeforamerica/tofu-modules-aws-serverless-database.git
diff --git a/aws/serverless_database b/aws/serverless_database
new file mode 160000
index 0000000..d5bbeff
--- /dev/null
+++ b/aws/serverless_database
@@ -0,0 +1 @@
+Subproject commit d5bbeff8474aef05d03dc42cf35811d592c7ac26