diff --git a/CHANGELOG.md b/CHANGELOG.md
index a312731d8a..72ff161e22 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,8 @@ tls_certificate_check and bump to OTP-25
 ([#759](https://github.com/open-telemetry/opentelemetry-demo/issues/759))
 * Use browserDetector to populate browser info to frontend-web telemetry
 ([#760](https://github.com/open-telemetry/opentelemetry-demo/pull/760))
+* [chore] update for Mac M2 architecture
+([#764](https://github.com/open-telemetry/opentelemetry-demo/pull/764))
 
 ## v0.1.0
 
diff --git a/src/adservice/src/main/java/oteldemo/AdService.java b/src/adservice/src/main/java/oteldemo/AdService.java
index 05033ef065..e8905f7009 100644
--- a/src/adservice/src/main/java/oteldemo/AdService.java
+++ b/src/adservice/src/main/java/oteldemo/AdService.java
@@ -90,7 +90,7 @@ private void start() throws IOException {
                     new IllegalStateException(
                         "environment vars: FEATURE_FLAG_GRPC_SERVICE_ADDR must not be null"));
     FeatureFlagServiceBlockingStub featureFlagServiceStub =
-        FeatureFlagServiceGrpc.newBlockingStub(
+        oteldemo.FeatureFlagServiceGrpc.newBlockingStub(
             ManagedChannelBuilder.forTarget(featureFlagServiceAddr).usePlaintext().build());
 
     server =
diff --git a/src/emailservice/Gemfile.lock b/src/emailservice/Gemfile.lock
index 1242d3e71d..92a45bdc99 100644
--- a/src/emailservice/Gemfile.lock
+++ b/src/emailservice/Gemfile.lock
@@ -60,6 +60,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-21
+  arm64-darwin-22
 
 DEPENDENCIES
   net-smtp (~> 0.3)
diff --git a/src/recommendationservice/requirements.txt b/src/recommendationservice/requirements.txt
index b3f7540e48..85d0901cde 100644
--- a/src/recommendationservice/requirements.txt
+++ b/src/recommendationservice/requirements.txt
@@ -1,5 +1,5 @@
 grpcio-health-checking==1.43.0
-grpcio==1.43.0
+grpcio==1.51.3
 opentelemetry-distro==0.36b0
 opentelemetry-exporter-otlp-proto-grpc==1.15.0
 python-dotenv==0.21.0