diff --git a/.changeset/red-ligers-scream.md b/.changeset/red-ligers-scream.md
new file mode 100644
index 00000000000..299ff5e7a8d
--- /dev/null
+++ b/.changeset/red-ligers-scream.md
@@ -0,0 +1,6 @@
+---
+'@graphiql/react': patch
+---
+
+Add missing effect dependency to make sure updates to the `defaultHeaders` prop
+have the desired effect
diff --git a/packages/graphiql-react/src/editor/context.tsx b/packages/graphiql-react/src/editor/context.tsx
index 1eafd584db2..c141df63e85 100644
--- a/packages/graphiql-react/src/editor/context.tsx
+++ b/packages/graphiql-react/src/editor/context.tsx
@@ -329,7 +329,13 @@ export function EditorContextProvider(props: EditorContextProviderProps) {
       onTabChange?.(updated);
       return updated;
     });
-  }, [onTabChange, setEditorValues, storeTabs, synchronizeActiveTabValues]);
+  }, [
+    props.defaultHeaders,
+    onTabChange,
+    setEditorValues,
+    storeTabs,
+    synchronizeActiveTabValues,
+  ]);
 
   const changeTab = useCallback<EditorContextType['changeTab']>(
     index => {