diff --git a/runner/monitor/CHANGELOG.md b/runner/monitor/CHANGELOG.md
index 51474a60e..92c24cb64 100644
--- a/runner/monitor/CHANGELOG.md
+++ b/runner/monitor/CHANGELOG.md
@@ -13,6 +13,7 @@
 **API Changes**
 
 * Update to minSdkVersion 21
+* Make ReflectionException a RuntimeException
 
 **Breaking API Changes**
 
diff --git a/runner/monitor/java/androidx/test/api/current_internal.txt b/runner/monitor/java/androidx/test/api/current_internal.txt
index e96bc9d9f..91236f41b 100644
--- a/runner/monitor/java/androidx/test/api/current_internal.txt
+++ b/runner/monitor/java/androidx/test/api/current_internal.txt
@@ -63,7 +63,7 @@ package androidx.test.internal.platform.os {
 
 package androidx.test.internal.platform.reflect {
 
-  @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP) public class ReflectionException extends java.lang.Exception {
+  @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP) public class ReflectionException extends java.lang.RuntimeException {
   }
 
   @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP) public class ReflectiveField<T> {
diff --git a/runner/monitor/java/androidx/test/internal/platform/reflect/ReflectionException.java b/runner/monitor/java/androidx/test/internal/platform/reflect/ReflectionException.java
index 5b91da2ff..8a55f54e0 100644
--- a/runner/monitor/java/androidx/test/internal/platform/reflect/ReflectionException.java
+++ b/runner/monitor/java/androidx/test/internal/platform/reflect/ReflectionException.java
@@ -24,7 +24,7 @@
  * @hide
  */
 @RestrictTo(Scope.LIBRARY_GROUP)
-public class ReflectionException extends Exception {
+public class ReflectionException extends RuntimeException {
 
   ReflectionException(Exception cause) {
     super("Reflection access failed", cause);