diff --git a/.gitmodules b/.gitmodules
index fdb73e9..4453baa 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "spec/engine-test-data"]
 	path = spec/engine-test-data
 	url = git@github.com:Flagsmith/engine-test-data.git
+	branch = v1.0.0