diff --git a/.gitmodules b/.gitmodules
index dacf09b..2f70235 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +1,7 @@
 [submodule "src/test/java/com/flagsmith/flagengine/enginetestdata"]
 	path = src/test/java/com/flagsmith/flagengine/enginetestdata
 	url = git@github.com:Flagsmith/engine-test-data.git
-	branch = v3.11.0
+	branch = v3.12.1
 [submodule "third-party/codspeed-jvm"]
 	path = third-party/codspeed-jvm
 	url = https://github.com/CodSpeedHQ/codspeed-jvm.git
diff --git a/src/test/java/com/flagsmith/flagengine/enginetestdata b/src/test/java/com/flagsmith/flagengine/enginetestdata
index 28363b3..cb06740 160000
--- a/src/test/java/com/flagsmith/flagengine/enginetestdata
+++ b/src/test/java/com/flagsmith/flagengine/enginetestdata
@@ -1 +1 @@
-Subproject commit 28363b388de2850c7c3f1b6e7a8bdd41d8da433c
+Subproject commit cb067401093766e55c3354c1de7c73d9331334df