diff --git a/.gitmodules b/.gitmodules
index b2bee4c..78589c8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "spec/engine-test-data"]
 	path = spec/engine-test-data
 	url = git@github.com:Flagsmith/engine-test-data.git
-	branch = v3.7.0
+	branch = v3.12.1
diff --git a/spec/engine-test-data b/spec/engine-test-data
index 4b29dc7..cb06740 160000
--- a/spec/engine-test-data
+++ b/spec/engine-test-data
@@ -1 +1 @@
-Subproject commit 4b29dc772a764364af2dd504ecefbdf74cf5473f
+Subproject commit cb067401093766e55c3354c1de7c73d9331334df