diff --git a/coordinator/src/main.rs b/coordinator/src/main.rs
index 26d5580fe..cff582543 100644
--- a/coordinator/src/main.rs
+++ b/coordinator/src/main.rs
@@ -43,6 +43,10 @@ async fn synchronise_registry_config(
                 if active_block_stream.version == registry_version {
                     continue;
                 }
+
+                block_streams_handler
+                    .stop(active_block_stream.stream_id)
+                    .await?;
             }
 
             let start_block_height = if let Some(start_block_height) =
@@ -347,5 +351,73 @@ mod tests {
                 .await
                 .unwrap();
         }
+
+        #[tokio::test]
+        async fn restarts_streams_with_mismatched_versions() {
+            let mut registry = Registry::default();
+            registry.expect_fetch().returning(|| {
+                Ok(HashMap::from([(
+                    "morgs.near".parse().unwrap(),
+                    HashMap::from([(
+                        "test".to_string(),
+                        IndexerConfig {
+                            account_id: "morgs.near".parse().unwrap(),
+                            function_name: "test".to_string(),
+                            code: String::new(),
+                            schema: Some(String::new()),
+                            filter: IndexerRule {
+                                id: None,
+                                name: None,
+                                indexer_rule_kind: IndexerRuleKind::Action,
+                                matching_rule: MatchingRule::ActionAny {
+                                    affected_account_id: "queryapi.dataplatform.near".to_string(),
+                                    status: Status::Any,
+                                },
+                            },
+                            created_at_block_height: 101,
+                            updated_at_block_height: Some(200),
+                            start_block_height: Some(1000),
+                        },
+                    )]),
+                )]))
+            });
+
+            let mut redis_client = RedisClient::default();
+            redis_client
+                .expect_get::<String, u64>()
+                .returning(|_| anyhow::bail!("none"));
+
+            let mut block_stream_handler = BlockStreamsHandler::default();
+            block_stream_handler.expect_list().returning(|| {
+                Ok(vec![block_streamer::StreamInfo {
+                    stream_id: "stream_id".to_string(),
+                    account_id: "morgs.near".to_string(),
+                    function_name: "test".to_string(),
+                    version: 101,
+                }])
+            });
+            block_stream_handler
+                .expect_stop()
+                .with(predicate::eq("stream_id".to_string()))
+                .returning(|_| Ok(()))
+                .once();
+            block_stream_handler
+                .expect_start()
+                .with(
+                    predicate::eq(1000),
+                    predicate::eq("morgs.near".to_string()),
+                    predicate::eq("test".to_string()),
+                    predicate::eq(200),
+                    predicate::eq(MatchingRule::ActionAny {
+                        affected_account_id: "queryapi.dataplatform.near".to_string(),
+                        status: Status::Any,
+                    }),
+                )
+                .returning(|_, _, _, _, _| Ok(()));
+
+            synchronise_registry_config(&registry, &redis_client, &mut block_stream_handler)
+                .await
+                .unwrap();
+        }
     }
 }