diff --git a/libs/langgraph/langgraph/pregel/_loop.py b/libs/langgraph/langgraph/pregel/_loop.py
index f3d76b7c42..a935a182ce 100644
--- a/libs/langgraph/langgraph/pregel/_loop.py
+++ b/libs/langgraph/langgraph/pregel/_loop.py
@@ -508,7 +508,7 @@ def put_writes(
                     else (c, v)
                 )
                 for c, v in writes_to_save
-                # dont persist UntrackedValue channel writes
+                # don't persist UntrackedValue channel writes
                 if not isinstance(self.specs.get(c), UntrackedValue)
             ]
 
diff --git a/libs/langgraph/tests/test_pregel.py b/libs/langgraph/tests/test_pregel.py
index 0079b2a577..80ba284243 100644
--- a/libs/langgraph/tests/test_pregel.py
+++ b/libs/langgraph/tests/test_pregel.py
@@ -3544,7 +3544,7 @@ def outer_2(state: State):
 
     # below combo of assertions is asserting two things
     # - outer_1 finishes before inner interrupts (because we see its output in stream, which only happens after node finishes)
-    # - the writes of outer are persisted in 1st call and used in 2nd call, ie outer isn't called again (because we dont see outer_1 output again in 2nd stream)
+    # - the writes of outer are persisted in 1st call and used in 2nd call, ie outer isn't called again (because we don't see outer_1 output again in 2nd stream)
     # test stream updates w/ nested interrupt
     config = {"configurable": {"thread_id": "2"}}
     assert [
diff --git a/libs/langgraph/tests/test_pregel_async.py b/libs/langgraph/tests/test_pregel_async.py
index aa832c47d9..60c872d81c 100644
--- a/libs/langgraph/tests/test_pregel_async.py
+++ b/libs/langgraph/tests/test_pregel_async.py
@@ -5307,7 +5307,7 @@ async def outer_2(state: State):
 
     # below combo of assertions is asserting two things
     # - outer_1 finishes before inner interrupts (because we see its output in stream, which only happens after node finishes)
-    # - the writes of outer are persisted in 1st call and used in 2nd call, ie outer isn't called again (because we dont see outer_1 output again in 2nd stream)
+    # - the writes of outer are persisted in 1st call and used in 2nd call, ie outer isn't called again (because we don't see outer_1 output again in 2nd stream)
     # test stream updates w/ nested interrupt
     config = {"configurable": {"thread_id": "2"}}
     assert [