diff --git a/docs/USAGE_GUIDE.en.md b/docs/USAGE_GUIDE.en.md
index 195437e..4f9da54 100644
--- a/docs/USAGE_GUIDE.en.md
+++ b/docs/USAGE_GUIDE.en.md
@@ -185,7 +185,7 @@ OCM also supports Discord:
 
 Go to **Agents** → `+ Add Agent` → set **Channel = Discord**:
 
-![](redacted-screenshots/agents-discord-add-agent.jpg)
+![](redacted-screenshots/agents-discord-add-agent.png)
 
 Steps:
 1) Create/select a dedicated Discord **channel** (private recommended)
diff --git a/docs/USAGE_GUIDE.zh-CN.md b/docs/USAGE_GUIDE.zh-CN.md
index b1eed2f..405f3dc 100644
--- a/docs/USAGE_GUIDE.zh-CN.md
+++ b/docs/USAGE_GUIDE.zh-CN.md
@@ -168,7 +168,7 @@ OCM 也支持 Discord：
 
 进入 **Agents** → `+ Add Agent` → 选择 **渠道 = Discord**：
 
-![](redacted-screenshots/agents-discord-add-agent.jpg)
+![](redacted-screenshots/agents-discord-add-agent.png)
 
 步骤：
 1) 创建/选择一个专用 Discord Channel（建议私密）
diff --git a/docs/redacted-screenshots/agents-discord-add-agent.jpg b/docs/redacted-screenshots/agents-discord-add-agent.jpg
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index aaae168..0000000
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