diff --git a/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/AutocommitDmlMode.java b/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/AutocommitDmlMode.java
index cbb635d6d7..e5f4cc7446 100644
--- a/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/AutocommitDmlMode.java
+++ b/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/AutocommitDmlMode.java
@@ -17,7 +17,7 @@
 package com.google.cloud.spanner.connection;
 
 /** Enum used to define the behavior of DML statements in autocommit mode */
-enum AutocommitDmlMode {
+public enum AutocommitDmlMode {
   TRANSACTIONAL,
   PARTITIONED_NON_ATOMIC;
 
diff --git a/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/TransactionMode.java b/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/TransactionMode.java
index c7f1d5a1d8..1210488689 100644
--- a/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/TransactionMode.java
+++ b/google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/TransactionMode.java
@@ -17,7 +17,7 @@
 package com.google.cloud.spanner.connection;
 
 /** Enum used to define the transaction type of a {@link Connection} */
-enum TransactionMode {
+public enum TransactionMode {
   READ_ONLY_TRANSACTION("READ ONLY"),
   READ_WRITE_TRANSACTION("READ WRITE");