diff --git a/spring-boot-samples/spring-boot-sample-oauth2-client/src/main/resources/application.yml b/spring-boot-samples/spring-boot-sample-oauth2-client/src/main/resources/application.yml
index 070e578fb3..cef19f0711 100644
--- a/spring-boot-samples/spring-boot-sample-oauth2-client/src/main/resources/application.yml
+++ b/spring-boot-samples/spring-boot-sample-oauth2-client/src/main/resources/application.yml
@@ -19,8 +19,8 @@ spring:
               scope: user:email
               redirect-uri: http://localhost:8080/login/oauth2/code/github
             yahoo-oidc:
-              client-id: a
-              client-secret: b
+              client-id: ${YAHOO-CLIENT-ID}
+              client-secret: ${YAHOO-CLIENT-SECRET}
           authorization_code:
             github-repos:
               client-id: ${APP-CLIENT-ID}