diff --git a/settings.gradle b/settings.gradle
index c8fdeb122..b3ca2de8a 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -46,7 +46,7 @@ gradle.ext {
   kotlinSerializationVersion = "1.0.0-RC"
   antlr4_version = "4.7.1"
   protobufGradlePluginVersion = "0.8.13"
-  protobufImplementationVersion = "3.12.2"
+  protobufImplementationVersion = "3.15.2"
 }
 buildLog("gradle settings properties: ${gradle.ext.properties}")
 
diff --git a/typescript/ts-model-proto/package-lock.json b/typescript/ts-model-proto/package-lock.json
index 0602b9048..ff715e7b3 100644
--- a/typescript/ts-model-proto/package-lock.json
+++ b/typescript/ts-model-proto/package-lock.json
@@ -5,16 +5,16 @@
   "requires": true,
   "dependencies": {
     "google-protobuf": {
-      "version": "3.11.1",
-      "resolved": "https://registry.yarnpkg.com/google-protobuf/-/google-protobuf-3.11.1.tgz",
-      "integrity": "sha1-wTGeX8hXk5R1jIpBaZ8KLj6VDDg="
+      "version": "3.15.1",
+      "resolved": "https://registry.yarnpkg.com/google-protobuf/-/google-protobuf-3.15.1.tgz",
+      "integrity": "sha1-tF1C7OSJc6nl4zZrTLz4XuYxT5Q="
     },
     "ts-protoc-gen": {
-      "version": "0.12.0",
-      "resolved": "https://registry.yarnpkg.com/ts-protoc-gen/-/ts-protoc-gen-0.12.0.tgz",
-      "integrity": "sha1-ky5XOPFLZ+cgKCWwb4xUjLfY7zQ=",
+      "version": "0.15.0",
+      "resolved": "https://registry.yarnpkg.com/ts-protoc-gen/-/ts-protoc-gen-0.15.0.tgz",
+      "integrity": "sha1-L+xZMLRt733Mn6c8Bg13C3sHa3s=",
       "requires": {
-        "google-protobuf": "3.11.1"
+        "google-protobuf": "3.15.1"
       }
     }
   }
diff --git a/typescript/ts-model-proto/package.template.json b/typescript/ts-model-proto/package.template.json
index 3157edeb1..ec0b5ff13 100644
--- a/typescript/ts-model-proto/package.template.json
+++ b/typescript/ts-model-proto/package.template.json
@@ -8,7 +8,7 @@
   },
   "author": "",
   "dependencies": {
-    "ts-protoc-gen": "0.12.0"
+    "ts-protoc-gen": "0.15.0"
   },
   "license": "UNLICENSED"
 }