diff --git a/src/main/java/org/opensearch/flowframework/util/EncryptorUtils.java b/src/main/java/org/opensearch/flowframework/util/EncryptorUtils.java
index 70b30b5cc..69d6b9f3c 100644
--- a/src/main/java/org/opensearch/flowframework/util/EncryptorUtils.java
+++ b/src/main/java/org/opensearch/flowframework/util/EncryptorUtils.java
@@ -56,7 +56,9 @@ public class EncryptorUtils {
 
     private static final String ALGORITHM = "AES";
     private static final String PROVIDER = "Custom";
-    private static final String WRAPPING_ALGORITHM = "AES/GCM/NoPadding";
+    // Intentionally uppercase to work around localization bug
+    // https://github.com/aws/aws-encryption-sdk-java/issues/1879
+    private static final String WRAPPING_ALGORITHM = "AES/GCM/NOPADDING";
 
     private ClusterService clusterService;
     private Client client;