diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/GrpcStorageOptions.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/GrpcStorageOptions.java
index dcadfb401e..841343d311 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/GrpcStorageOptions.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/GrpcStorageOptions.java
@@ -767,6 +767,7 @@ protected StorageSettings.Builder setInternalHeaderProvider(
 
   private static final class NoopGrpcInterceptorProvider
       implements GrpcInterceptorProvider, Serializable {
+    private static long serialVersionUID = -8523033236999805349L;
     private static final NoopGrpcInterceptorProvider INSTANCE = new NoopGrpcInterceptorProvider();
 
     @Override
diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageOptions.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageOptions.java
index 9d4873e2b4..cce8ff63c0 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageOptions.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/HttpStorageOptions.java
@@ -346,7 +346,7 @@ public ServiceRpc create(StorageOptions options) {
    * we do need use it in a couple places, for those we create this adapter.
    */
   private final class RetryDependenciesAdapter implements RetryingDependencies, Serializable {
-
+    private static long serialVersionUID = -7446566394108158974L;
     private RetryDependenciesAdapter() {}
 
     @Override
diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/Notification.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/Notification.java
index f3e2bb81a6..f3e0738d5c 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/Notification.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/Notification.java
@@ -26,6 +26,7 @@
  * details.
  */
 public class Notification extends NotificationInfo {
+  private static final long serialVersionUID = 3150928330690874200L;
 
   private final StorageOptions options;
   private transient Storage storage;
diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/StorageOptions.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/StorageOptions.java
index 74a6ffb3df..5167971277 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/StorageOptions.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/StorageOptions.java
@@ -63,6 +63,8 @@ public abstract class StorageOptions extends ServiceOptions<Storage, StorageOpti
   /** @deprecated Use {@link HttpStorageFactory} */
   @Deprecated
   public static class DefaultStorageFactory extends HttpStorageFactory {
+    private static final long serialVersionUID = -7856840922014956661L;
+    
     /** @deprecated Use {@link HttpStorageDefaults#getDefaultServiceFactory()} */
     @Deprecated
     public DefaultStorageFactory() {
@@ -73,6 +75,7 @@ public DefaultStorageFactory() {
   /** @deprecated Use {@link HttpStorageRpcFactory} */
   @Deprecated
   public static class DefaultStorageRpcFactory extends HttpStorageRpcFactory {
+    private static final long serialVersionUID = -7856840922014956661L;
 
     /** @deprecated Use {@link HttpStorageDefaults#getDefaultRpcFactory()} */
     @Deprecated
diff --git a/google-cloud-storage/src/main/java/com/google/cloud/storage/UnifiedOpts.java b/google-cloud-storage/src/main/java/com/google/cloud/storage/UnifiedOpts.java
index dbf7bb6463..dbf104e900 100644
--- a/google-cloud-storage/src/main/java/com/google/cloud/storage/UnifiedOpts.java
+++ b/google-cloud-storage/src/main/java/com/google/cloud/storage/UnifiedOpts.java
@@ -2540,6 +2540,7 @@ private static CommonObjectRequestParams.Builder customerSuppliedKey(
   }
 
   private static final class PrefixedNamedField implements NamedField {
+    private static long serialVersionUID = -4899304145424680141L;
 
     private final String prefix;
     private final NamedField delegate;
@@ -2586,6 +2587,7 @@ public String toString() {
   }
 
   private static final class LiteralNamedField implements NamedField {
+    private static long serialVersionUID = 1422947423774466409L;
 
     private final String name;
 
@@ -2627,6 +2629,7 @@ public String toString() {
   }
 
   private static final class NestedNamedField implements NamedField {
+    private static long serialVersionUID = -7623005572810688221L;
     private final NamedField parent;
     private final NamedField child;