diff --git a/spring-core/src/main/java/org/springframework/util/PlaceholderResolutionException.java b/spring-core/src/main/java/org/springframework/util/PlaceholderResolutionException.java
index bc789a9bba3..0b4bdc6d26d 100644
--- a/spring-core/src/main/java/org/springframework/util/PlaceholderResolutionException.java
+++ b/spring-core/src/main/java/org/springframework/util/PlaceholderResolutionException.java
@@ -31,7 +31,7 @@ import org.springframework.lang.Nullable;
  * @since 6.2
  */
 @SuppressWarnings("serial")
-public class PlaceholderResolutionException extends RuntimeException {
+public class PlaceholderResolutionException extends IllegalArgumentException {
 
 	private final String reason;