diff --git a/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignAutoConfiguration.java b/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignAutoConfiguration.java
index e8cfcd9f..ef395718 100644
--- a/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignAutoConfiguration.java
+++ b/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignAutoConfiguration.java
@@ -312,6 +312,7 @@ public class FeignAutoConfiguration {
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass(OAuth2ClientContext.class)
 	@ConditionalOnProperty("feign.oauth2.enabled")
+	@Deprecated // spring-security-oauth2 reached EOL
 	protected static class Oauth2FeignConfiguration {
 
 		@Bean
diff --git a/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptor.java b/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptor.java
index 6b5302d5..2d26df89 100644
--- a/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptor.java
+++ b/spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/security/OAuth2FeignRequestInterceptor.java
@@ -43,6 +43,7 @@ import org.springframework.security.oauth2.common.OAuth2AccessToken;
  * @author Tim Ysewyn
  * @since 3.0.0
  */
+@Deprecated // spring-security-oauth2 reached EOL
 public class OAuth2FeignRequestInterceptor implements RequestInterceptor {
 
 	/**
diff --git a/spring-cloud-openfeign-dependencies/pom.xml b/spring-cloud-openfeign-dependencies/pom.xml
index 1be252fe..cb4644b9 100644
--- a/spring-cloud-openfeign-dependencies/pom.xml
+++ b/spring-cloud-openfeign-dependencies/pom.xml
@@ -17,7 +17,8 @@
 	<properties>
 		<feign.version>10.12</feign.version>
 		<feign-form.version>3.8.0</feign-form.version>
-		<spring-security-oauth2-autoconfigure.version>2.1.2.RELEASE</spring-security-oauth2-autoconfigure.version>
+		<!-- Deprecated - reached EOL -->
+		<spring-security-oauth2-autoconfigure.version>2.5.2</spring-security-oauth2-autoconfigure.version>
 	</properties>
 	<dependencyManagement>
 		<dependencies>