diff --git a/.changeset/three-parrots-remember.md b/.changeset/three-parrots-remember.md
new file mode 100644
index 000000000..17c0ee497
--- /dev/null
+++ b/.changeset/three-parrots-remember.md
@@ -0,0 +1,5 @@
+---
+'slate': patch
+---
+
+Fixed a bug that would allow multiple changes to be scheduled at the same time.
diff --git a/packages/slate/src/create-editor.ts b/packages/slate/src/create-editor.ts
index f19d93846..a7b8399fe 100644
--- a/packages/slate/src/create-editor.ts
+++ b/packages/slate/src/create-editor.ts
@@ -106,7 +106,9 @@ export const createEditor = (): Editor => {
           }
 
           editor.marks = marks
-          editor.onChange()
+          if (!FLUSHING.get(editor)) {
+            editor.onChange()
+          }
         }
       }
     },
@@ -296,7 +298,9 @@ export const createEditor = (): Editor => {
           const marks = { ...(Editor.marks(editor) || {}) }
           delete marks[key]
           editor.marks = marks
-          editor.onChange()
+          if (!FLUSHING.get(editor)) {
+            editor.onChange()
+          }
         }
       }
     },