diff --git a/build.gradle b/build.gradle
index 2c9705a..0b00333 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,7 +15,7 @@ subprojects {
     version = '0.6.2'
 
     ext {
-        grpcVersion = '1.31.1'
+        grpcVersion = '1.33.0'
         jupiterVersion = '5.6.2'
         mockitoVersion = '3.5.2'
         lombokVersion = '1.18.12'
diff --git a/java-spiffe-core/build.gradle b/java-spiffe-core/build.gradle
index 7223fa7..90fca9d 100644
--- a/java-spiffe-core/build.gradle
+++ b/java-spiffe-core/build.gradle
@@ -4,7 +4,7 @@ buildscript {
     }
 
     dependencies {
-        classpath group: 'com.google.protobuf', name: 'protobuf-gradle-plugin', version: '0.8.12'
+        classpath group: 'com.google.protobuf', name: 'protobuf-gradle-plugin', version: '0.8.13'
     }
 }
 
@@ -24,7 +24,7 @@ sourceSets {
 
 protobuf {
     protoc {
-        artifact = 'com.google.protobuf:protoc:3.12.0'
+        artifact = 'com.google.protobuf:protoc:3.13.0'
     }
     plugins {
         grpc {