diff --git a/README.md b/README.md
index 10361fa2de..dbf3555310 100644
--- a/README.md
+++ b/README.md
@@ -28,37 +28,37 @@ Download [the JARs][]. Or for Maven with non-Android, add to your `pom.xml`:
 <dependency>
   <groupId>io.grpc</groupId>
   <artifactId>grpc-netty</artifactId>
-  <version>1.4.0</version>
+  <version>1.6.1</version>
 </dependency>
 <dependency>
   <groupId>io.grpc</groupId>
   <artifactId>grpc-protobuf</artifactId>
-  <version>1.4.0</version>
+  <version>1.6.1</version>
 </dependency>
 <dependency>
   <groupId>io.grpc</groupId>
   <artifactId>grpc-stub</artifactId>
-  <version>1.4.0</version>
+  <version>1.6.1</version>
 </dependency>
 ```
 
 Or for Gradle with non-Android, add to your dependencies:
 ```gradle
-compile 'io.grpc:grpc-netty:1.4.0'
-compile 'io.grpc:grpc-protobuf:1.4.0'
-compile 'io.grpc:grpc-stub:1.4.0'
+compile 'io.grpc:grpc-netty:1.6.1'
+compile 'io.grpc:grpc-protobuf:1.6.1'
+compile 'io.grpc:grpc-stub:1.6.1'
 ```
 
 For Android client, use `grpc-okhttp` instead of `grpc-netty` and
 `grpc-protobuf-lite` or `grpc-protobuf-nano` instead of `grpc-protobuf`:
 ```gradle
-compile 'io.grpc:grpc-okhttp:1.4.0'
-compile 'io.grpc:grpc-protobuf-lite:1.4.0'
-compile 'io.grpc:grpc-stub:1.4.0'
+compile 'io.grpc:grpc-okhttp:1.6.1'
+compile 'io.grpc:grpc-protobuf-lite:1.6.1'
+compile 'io.grpc:grpc-stub:1.6.1'
 ```
 
 [the JARs]:
-http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22io.grpc%22%20AND%20v%3A%221.4.0%22
+http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22io.grpc%22%20AND%20v%3A%221.6.1%22
 
 Development snapshots are available in [Sonatypes's snapshot
 repository](https://oss.sonatype.org/content/repositories/snapshots/).
@@ -87,7 +87,7 @@ For protobuf-based codegen integrated with the Maven build system, you can use
       <configuration>
         <protocArtifact>com.google.protobuf:protoc:3.3.0:exe:${os.detected.classifier}</protocArtifact>
         <pluginId>grpc-java</pluginId>
-        <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.4.0:exe:${os.detected.classifier}</pluginArtifact>
+        <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.6.1:exe:${os.detected.classifier}</pluginArtifact>
       </configuration>
       <executions>
         <execution>
@@ -123,11 +123,11 @@ buildscript {
 
 protobuf {
   protoc {
-    artifact = "com.google.protobuf:protoc:3.2.0"
+    artifact = "com.google.protobuf:protoc:3.3.0"
   }
   plugins {
     grpc {
-      artifact = 'io.grpc:protoc-gen-grpc-java:1.4.0'
+      artifact = 'io.grpc:protoc-gen-grpc-java:1.6.1'
     }
   }
   generateProtoTasks {
diff --git a/SECURITY.md b/SECURITY.md
index 831914ac48..821404f105 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -62,7 +62,7 @@ In Maven, you can use the [os-maven-plugin](https://github.com/trustin/os-maven-
     <dependency>
       <groupId>io.netty</groupId>
       <artifactId>netty-tcnative-boringssl-static</artifactId>
-      <version>2.0.3.Final</version>
+      <version>2.0.5.Final</version>
     </dependency>
   </dependencies>
 </project>
@@ -80,7 +80,7 @@ buildscript {
 }
 
 dependencies {
-    compile 'io.netty:netty-tcnative-boringssl-static:2.0.3.Final'
+    compile 'io.netty:netty-tcnative-boringssl-static:2.0.5.Final'
 }
 ```
 
@@ -115,7 +115,7 @@ In Maven, you can use the [os-maven-plugin](https://github.com/trustin/os-maven-
     <dependency>
       <groupId>io.netty</groupId>
       <artifactId>netty-tcnative</artifactId>
-      <version>2.0.3.Final</version>
+      <version>2.0.5.Final</version>
       <classifier>${tcnative.classifier}</classifier>
     </dependency>
   </dependencies>
@@ -183,7 +183,7 @@ if (osdetector.os == "linux" && osdetector.release.isLike("fedora")) {
 }
 
 dependencies {
-    compile 'io.netty:netty-tcnative:2.0.3.Final:' + tcnative_classifier
+    compile 'io.netty:netty-tcnative:2.0.5.Final:' + tcnative_classifier
 }
 ```