diff --git a/drivers/gpu/drm/tests/drm_bridge_test.c b/drivers/gpu/drm/tests/drm_bridge_test.c
index 15583ade8494..a445f71c31b8 100644
--- a/drivers/gpu/drm/tests/drm_bridge_test.c
+++ b/drivers/gpu/drm/tests/drm_bridge_test.c
@@ -497,6 +497,7 @@ drm_test_bridge_chain_init(struct kunit *test, unsigned int num_bridges,
 			bridge->type = DRM_MODE_CONNECTOR_HDMIA;
 			bridge->vendor = "LNX";
 			bridge->product = "KUnit";
+			bridge->supported_hdmi_ver = HDMI_VERSION_1_4;
 			bridge->supported_formats = (BIT(DRM_OUTPUT_COLOR_FORMAT_RGB444) |
 						     BIT(DRM_OUTPUT_COLOR_FORMAT_YCBCR444) |
 						     BIT(DRM_OUTPUT_COLOR_FORMAT_YCBCR422) |
@@ -597,6 +598,7 @@ drm_test_bridge_hdmi_init(struct kunit *test, const struct drm_bridge_funcs *fun
 	bridge->ops |= DRM_BRIDGE_OP_HDMI;
 	bridge->vendor = "LNX";
 	bridge->product = "KUnit";
+	bridge->supported_hdmi_ver = HDMI_VERSION_1_4;
 
 	ret = drm_kunit_bridge_add(test, bridge);
 	if (ret)