diff --git a/docutranslate/agents/glossary_agent.py b/docutranslate/agents/glossary_agent.py
index b752bfc..b937949 100644
--- a/docutranslate/agents/glossary_agent.py
+++ b/docutranslate/agents/glossary_agent.py
@@ -18,7 +18,7 @@ class GlossaryAgentConfig(AgentConfig):
 class GlossaryAgent(Agent):
     def __init__(self, config: GlossaryAgentConfig):
         super().__init__(config)
-        self.to_lang=config.to_lang
+        self.to_lang = config.to_lang
         self.system_prompt = f"""
 # Role
 You are a professional machine translation engine.
@@ -79,7 +79,7 @@ You are a professional machine translation engine.
             chunk: list[dict[str, str]]
             try:
                 glossary_dict = {d["src"]: d["dst"] for d in chunk}
-                result = result | glossary_dict
+                result = glossary_dict | result
             except JSONDecodeError as e:
                 self.logger.info(f"json解析错误，解析文本:{chunk}，错误:{e.__repr__()}")
             except Exception as e:
diff --git a/docutranslate/agents/markdown_agent.py b/docutranslate/agents/markdown_agent.py
index d46f446..f1a787f 100644
--- a/docutranslate/agents/markdown_agent.py
+++ b/docutranslate/agents/markdown_agent.py
@@ -73,4 +73,4 @@ $$1+1=2$$
         if self.glossary_dict is None:
             self.glossary_dict = {}
         if update_dict is not None:
-            self.glossary_dict = self.glossary_dict | update_dict
+            self.glossary_dict = update_dict | self.glossary_dict
diff --git a/docutranslate/agents/segments_agent.py b/docutranslate/agents/segments_agent.py
index e8f70de..5bd32f8 100644
--- a/docutranslate/agents/segments_agent.py
+++ b/docutranslate/agents/segments_agent.py
@@ -148,8 +148,8 @@ Warning: Never wrap the entire JSON object in quotes to make it a single string.
         result.extend(ls[last_end:])
         return result
 
-    def update_glossary_dict(self, update_dict: dict|None):
+    def update_glossary_dict(self, update_dict: dict | None):
         if self.glossary_dict is None:
             self.glossary_dict = {}
         if update_dict is not None:
-            self.glossary_dict = self.glossary_dict | update_dict
+            self.glossary_dict = update_dict | self.glossary_dict
diff --git a/docutranslate/agents/txt_agent.py b/docutranslate/agents/txt_agent.py
index 24156f1..ced6d95 100644
--- a/docutranslate/agents/txt_agent.py
+++ b/docutranslate/agents/txt_agent.py
@@ -49,8 +49,8 @@ The translated txt text as plain text.
     async def send_chunks_async(self, prompts: list[str]):
         return await super().send_prompts_async(prompts=prompts, pre_send_handler=self._pre_send_handler)
 
-    def update_glossary_dict(self, update_dict: dict|None):
+    def update_glossary_dict(self, update_dict: dict | None):
         if self.glossary_dict is None:
             self.glossary_dict = {}
         if update_dict is not None:
-            self.glossary_dict = self.glossary_dict | update_dict
\ No newline at end of file
+            self.glossary_dict = update_dict | self.glossary_dict