diff --git a/.gitmodules b/.gitmodules
index e439dea5d..619d4fff1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,7 +4,7 @@
 [submodule "providers/flagd/test-harness"]
 	path = providers/flagd/test-harness
 	url = https://github.com/open-feature/test-harness.git
-	branch = v0.5.21
+	branch = v1.1.1
 [submodule "providers/flagd/spec"]
 	path = providers/flagd/spec
 	url = https://github.com/open-feature/spec.git
diff --git a/providers/flagd/test-harness b/providers/flagd/test-harness
index 8931c8645..fc7867922 160000
--- a/providers/flagd/test-harness
+++ b/providers/flagd/test-harness
@@ -1 +1 @@
-Subproject commit 8931c8645b8600e251d5e3ebbad42dff8ce4c78e
+Subproject commit fc786792273b7984911dc3bcb7b47489f261ba57