diff --git a/requirements.txt b/requirements.txt
index 1a53075..3f44e71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-langgraph==1.2.5
+langgraph==1.2.6
 # Durable SQLite checkpointer for the R720 agent-team Plane-2 pipeline (design D9).
 langgraph-checkpoint-sqlite==3.1.0
 langchain-anthropic==1.4.6