diff --git a/spring-core/src/main/java/org/springframework/core/SimpleAliasRegistry.java b/spring-core/src/main/java/org/springframework/core/SimpleAliasRegistry.java
index 1ec7d5c3a18e..0423362b77e9 100644
--- a/spring-core/src/main/java/org/springframework/core/SimpleAliasRegistry.java
+++ b/spring-core/src/main/java/org/springframework/core/SimpleAliasRegistry.java
@@ -50,7 +50,7 @@ public class SimpleAliasRegistry implements AliasRegistry {
 	private final Map<String, String> aliasMap = new ConcurrentHashMap<>(16);
 
 	/** List of alias names, in registration order. */
-	private volatile List<String> aliasNames = new ArrayList<>(16);
+	private final List<String> aliasNames = new ArrayList<>(16);
 
 
 	@Override