diff --git a/.gitmodules b/.gitmodules
index 84843f000..4174eb2e1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "res/ethereum/tests"]
 	path = res/ethereum/tests
 	url = git@github.com:ethereum/tests
+	branch = develop
diff --git a/res/ethereum/tests b/res/ethereum/tests
index dc86e6359..c670b1d8c 160000
--- a/res/ethereum/tests
+++ b/res/ethereum/tests
@@ -1 +1 @@
-Subproject commit dc86e6359675440aea59ddb48648a01c799925d8
+Subproject commit c670b1d8c9f09593a6758ab2c099360e16c7c25b