diff --git a/lms/djangoapps/course_api/blocks/transformers/block_completion.py b/lms/djangoapps/course_api/blocks/transformers/block_completion.py
index b7f964f89b..99404b6f22 100644
--- a/lms/djangoapps/course_api/blocks/transformers/block_completion.py
+++ b/lms/djangoapps/course_api/blocks/transformers/block_completion.py
@@ -12,7 +12,7 @@ class BlockCompletionTransformer(BlockStructureTransformer):
     """
     Keep track of the completion of each block within the block structure.
     """
-    READ_VERSION = 0
+    READ_VERSION = 1
     WRITE_VERSION = 1
     COMPLETION = 'completion'