diff --git a/README.md b/README.md
index 2bf94f4963f7..f80bcc3f7a89 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 gRPC-Java - An RPC library and framework
 ========================================
 
-gRPC-Java works with JDK 7. gRPC-Java clients are supported on Android API
+gRPC-Java works with JDK 8. gRPC-Java clients are supported on Android API
 levels 19 and up (KitKat and later). Deploying gRPC servers on an Android
 device is not supported.
 
@@ -112,7 +112,7 @@ For protobuf-based codegen integrated with the Maven build system, you can use
       <artifactId>protobuf-maven-plugin</artifactId>
       <version>0.6.1</version>
       <configuration>
-        <protocArtifact>com.google.protobuf:protoc:3.19.1:exe:${os.detected.classifier}</protocArtifact>
+        <protocArtifact>com.google.protobuf:protoc:3.19.2:exe:${os.detected.classifier}</protocArtifact>
         <pluginId>grpc-java</pluginId>
         <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.44.0:exe:${os.detected.classifier}</pluginArtifact>
       </configuration>
@@ -140,7 +140,7 @@ plugins {
 
 protobuf {
   protoc {
-    artifact = "com.google.protobuf:protoc:3.19.1"
+    artifact = "com.google.protobuf:protoc:3.19.2"
   }
   plugins {
     grpc {
@@ -173,7 +173,7 @@ plugins {
 
 protobuf {
   protoc {
-    artifact = "com.google.protobuf:protoc:3.19.1"
+    artifact = "com.google.protobuf:protoc:3.19.2"
   }
   plugins {
     grpc {