diff --git a/.gitmodules b/.gitmodules
index ded3c47..7597aff 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +1,7 @@
 [submodule "test/support/engine-test-data"]
 	path = test/support/engine-test-data
 	url = git@github.com:Flagsmith/engine-test-data.git
-	branch = v1.0.0
+	branch = v3.12.1
 [submodule "test/support/sdk-benchmarks"]
 	path = test/support/sdk-benchmarks
 	url = https://github.com/Flagsmith/sdk-benchmarks.git
diff --git a/test/support/engine-test-data b/test/support/engine-test-data
index 81e3037..cb06740 160000
--- a/test/support/engine-test-data
+++ b/test/support/engine-test-data
@@ -1 +1 @@
-Subproject commit 81e3037fbd3fcf6debcede424706fdbeb1b0c0a6
+Subproject commit cb067401093766e55c3354c1de7c73d9331334df