diff --git a/examples/rag/langgraph_agentic_rag.ipynb b/examples/rag/langgraph_agentic_rag.ipynb
index 56c4e7f30..ca9f1f029 100644
--- a/examples/rag/langgraph_agentic_rag.ipynb
+++ b/examples/rag/langgraph_agentic_rag.ipynb
@@ -126,7 +126,7 @@
    "source": [
     "## Agent state\n",
     " \n",
-    "We will defined a graph.\n",
+    "We will define a graph.\n",
     "\n",
     "A `state` object that it passes around to each node.\n",
     "\n",