diff --git a/build.gradle b/build.gradle
index c289111210..008f4bbb1d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -99,7 +99,7 @@ subprojects {
         protocPluginBaseName = 'protoc-gen-grpc-java'
         javaPluginPath = "$rootDir/compiler/build/exe/java_plugin/$protocPluginBaseName$exeSuffix"
 
-        nettyVersion = '4.1.22.Final'
+        nettyVersion = '4.1.24.Final'
         guavaVersion = '20.0'
         protobufVersion = '3.5.1'
         protocVersion = '3.5.1-1'
@@ -215,7 +215,7 @@ subprojects {
                 netty: "io.netty:netty-codec-http2:[${nettyVersion}]",
                 netty_epoll: "io.netty:netty-transport-native-epoll:${nettyVersion}" + epoll_suffix,
                 netty_proxy_handler: "io.netty:netty-handler-proxy:${nettyVersion}",
-                netty_tcnative: 'io.netty:netty-tcnative-boringssl-static:2.0.7.Final',
+                netty_tcnative: 'io.netty:netty-tcnative-boringssl-static:2.0.8.Final',
 
                 conscrypt: 'org.conscrypt:conscrypt-openjdk-uber:1.0.1',