diff --git a/observability/build.gradle b/observability/build.gradle
index f27054d18d..1f6147dee0 100644
--- a/observability/build.gradle
+++ b/observability/build.gradle
@@ -10,12 +10,12 @@ description = "gRPC: Observability"
 dependencies {
     def cloudLoggingVersion = '3.6.1'
 
-    api project(':grpc-api'),
-            project(':grpc-alts'),
-            libraries.google_auth_oauth2_http
+    api project(':grpc-api')
 
     implementation project(':grpc-protobuf'),
             project(':grpc-stub'),
+            project(':grpc-alts'),
+            libraries.google_auth_oauth2_http,
             ('com.google.guava:guava:31.0.1-jre'),
             ('com.google.errorprone:error_prone_annotations:2.11.0'),
             ('com.google.auth:google-auth-library-credentials:1.4.0'),