diff --git a/substrate/client/consensus/grandpa/src/import.rs b/substrate/client/consensus/grandpa/src/import.rs
index 8481b39584..ca5b7c400b 100644
--- a/substrate/client/consensus/grandpa/src/import.rs
+++ b/substrate/client/consensus/grandpa/src/import.rs
@@ -552,7 +552,6 @@ where
 							.into(),
 					))
 				}
-				assert!(block.justifications.is_some());
 				let mut authority_set = self.authority_set.inner_locked();
 				authority_set.authority_set_changes.insert(number);
 				crate::aux_schema::update_authority_set::<Block, _, _>(
diff --git a/substrate/client/service/src/client/client.rs b/substrate/client/service/src/client/client.rs
index a0983d823e..09c1673884 100644
--- a/substrate/client/service/src/client/client.rs
+++ b/substrate/client/service/src/client/client.rs
@@ -603,8 +603,6 @@ where
 			.block_gap
 			.map_or(false, |(start, _)| *import_headers.post().number() == start);
 
-		assert!(justifications.is_some() && finalized || justifications.is_none() || gap_block);
-
 		// the block is lower than our last finalized block so it must revert
 		// finality, refusing import.
 		if status == blockchain::BlockStatus::Unknown &&