diff --git a/yudao-dependencies/pom.xml b/yudao-dependencies/pom.xml
index e08f834fb9..f922512b30 100644
--- a/yudao-dependencies/pom.xml
+++ b/yudao-dependencies/pom.xml
@@ -88,6 +88,29 @@
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
+            <!-- 排除 Netty 4.2.x 引入的 BouncyCastle，避免 Spring Boot 嵌套 JAR 导致 JCE 签名校验失败 -->
+            <dependency>
+                <groupId>io.netty</groupId>
+                <artifactId>netty-handler</artifactId>
+                <version>${netty.version}</version>
+                <exclusions>
+                    <exclusion>
+                        <groupId>org.bouncycastle</groupId>
+                        <artifactId>bcprov-jdk18on</artifactId>
+                    </exclusion>
+                </exclusions>
+            </dependency>
+            <dependency>
+                <groupId>io.netty</groupId>
+                <artifactId>netty-codec-http3</artifactId>
+                <version>${netty.version}</version>
+                <exclusions>
+                    <exclusion>
+                        <groupId>org.bouncycastle</groupId>
+                        <artifactId>bcprov-jdk18on</artifactId>
+                    </exclusion>
+                </exclusions>
+            </dependency>
             <dependency>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>