diff --git a/packages/core/src/components/ConnectionLine/index.ts b/packages/core/src/components/ConnectionLine/index.ts
index 24b4fe3c..14de63ff 100644
--- a/packages/core/src/components/ConnectionLine/index.ts
+++ b/packages/core/src/components/ConnectionLine/index.ts
@@ -1,4 +1,6 @@
+import type { Component } from 'vue'
 import { defineComponent, h, inject } from 'vue'
+import type { ConnectionLineProps } from '~/types'
 import { ConnectionLineType, ConnectionMode, Position } from '~/types'
 import { getMarkerId } from '~/utils'
 import { useVueFlow } from '~/composables'
@@ -29,7 +31,7 @@ const ConnectionLine = defineComponent({
       findNode,
     } = useVueFlow()
 
-    const connectionLineComponent = inject(Slots)?.['connection-line']
+    const connectionLineComponent = inject(Slots)?.['connection-line'] as Component<ConnectionLineProps> | undefined
 
     return () => {
       if (!connectionStartHandle.value) {
diff --git a/packages/core/src/components/Edges/EdgeWrapper.ts b/packages/core/src/components/Edges/EdgeWrapper.ts
index 480cd38c..c8a208a6 100644
--- a/packages/core/src/components/Edges/EdgeWrapper.ts
+++ b/packages/core/src/components/Edges/EdgeWrapper.ts
@@ -177,7 +177,6 @@ const EdgeWrapper = defineComponent({
                 targetHandleId: edge.targetHandle,
                 interactionWidth: edge.interactionWidth,
               }),
-
           [
             props.updatable === 'source' || props.updatable === true
               ? [
diff --git a/packages/core/src/types/connection.ts b/packages/core/src/types/connection.ts
index f9117460..a749ef48 100644
--- a/packages/core/src/types/connection.ts
+++ b/packages/core/src/types/connection.ts
@@ -81,5 +81,5 @@ export interface ConnectionLineProps {
   /** marker url */
   markerEnd: string
   /** status of the connection (valid, invalid) */
-  connectionStatus: ConnectionStatus
+  connectionStatus: ConnectionStatus | null
 }