diff --git a/ml-algorithms/src/main/java/org/opensearch/ml/engine/encryptor/EncryptorImpl.java b/ml-algorithms/src/main/java/org/opensearch/ml/engine/encryptor/EncryptorImpl.java
index b500709bc5..617c6871e5 100644
--- a/ml-algorithms/src/main/java/org/opensearch/ml/engine/encryptor/EncryptorImpl.java
+++ b/ml-algorithms/src/main/java/org/opensearch/ml/engine/encryptor/EncryptorImpl.java
@@ -68,7 +68,8 @@ public String encrypt(String plainText) {
         initMasterKey();
         final AwsCrypto crypto = AwsCrypto.builder().withCommitmentPolicy(CommitmentPolicy.RequireEncryptRequireDecrypt).build();
         byte[] bytes = Base64.getDecoder().decode(masterKey);
-        JceMasterKey jceMasterKey = JceMasterKey.getInstance(new SecretKeySpec(bytes, "AES"), "Custom", "", "AES/GCM/NoPadding");
+        // https://github.com/aws/aws-encryption-sdk-java/issues/1879
+        JceMasterKey jceMasterKey = JceMasterKey.getInstance(new SecretKeySpec(bytes, "AES"), "Custom", "", "AES/GCM/NOPADDING");
 
         final CryptoResult<byte[], JceMasterKey> encryptResult = crypto
             .encryptData(jceMasterKey, plainText.getBytes(StandardCharsets.UTF_8));
@@ -81,7 +82,7 @@ public String decrypt(String encryptedText) {
         final AwsCrypto crypto = AwsCrypto.builder().withCommitmentPolicy(CommitmentPolicy.RequireEncryptRequireDecrypt).build();
 
         byte[] bytes = Base64.getDecoder().decode(masterKey);
-        JceMasterKey jceMasterKey = JceMasterKey.getInstance(new SecretKeySpec(bytes, "AES"), "Custom", "", "AES/GCM/NoPadding");
+        JceMasterKey jceMasterKey = JceMasterKey.getInstance(new SecretKeySpec(bytes, "AES"), "Custom", "", "AES/GCM/NOPADDING");
 
         final CryptoResult<byte[], JceMasterKey> decryptedResult = crypto
             .decryptData(jceMasterKey, Base64.getDecoder().decode(encryptedText));