diff --git a/docs/resources/diagrams/plantuml/io_dev_init_and_check.puml b/docs/resources/diagrams/plantuml/io_dev_init_and_check.puml
index 2752b33..b7289a2 100644
--- a/docs/resources/diagrams/plantuml/io_dev_init_and_check.puml
+++ b/docs/resources/diagrams/plantuml/io_dev_init_and_check.puml
@@ -1,7 +1,7 @@
 @startuml
 
-participant arm_io_storage order 1
-participant io_storage order 2
+participant arm_io_storage
+participant io_storage
 
  -> arm_io_storage : plat_get_image_source(image_id, &dev_handle, &image_spec)
 
diff --git a/docs/resources/diagrams/plantuml/io_dev_registration.puml b/docs/resources/diagrams/plantuml/io_dev_registration.puml
index 114c3b7..c6f330e 100644
--- a/docs/resources/diagrams/plantuml/io_dev_registration.puml
+++ b/docs/resources/diagrams/plantuml/io_dev_registration.puml
@@ -1,9 +1,9 @@
 @startuml
 
-participant arm_io_storage order 1
-participant io_storage order 2
-participant io_fip order 3
-participant io_memmap order 4
+participant arm_io_storage
+participant io_storage
+participant io_fip
+participant io_memmap
 
  -> arm_io_storage : arm_io_setup()
 
diff --git a/docs/resources/diagrams/plantuml/io_framework_usage_overview.puml b/docs/resources/diagrams/plantuml/io_framework_usage_overview.puml
index eb3e2b4..b21a0ae 100644
--- a/docs/resources/diagrams/plantuml/io_framework_usage_overview.puml
+++ b/docs/resources/diagrams/plantuml/io_framework_usage_overview.puml
@@ -1,8 +1,8 @@
 @startuml
 
-participant bl_common order 1
-participant arm_io_storage order 2
-participant io_storage order 3
+participant bl_common
+participant arm_io_storage
+participant io_storage
 
 == Platform Setup ==