diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteLogLayout.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteLogLayout.java
index 7797c6d..1c5efd3 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteLogLayout.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteLogLayout.java
@@ -34,7 +34,7 @@
    *
    * <p>The log entry for a failed project deletion will look like this: [2015-03-05 12:14:30,180
    * +0100] ERROR 1000000 admin FAIL \ myProject {"preserve":false,"force":false}
-   * com.google.gwtorm.server.OrmException: \ Failed to access the database
+   * com.google.gerrit.exceptions.StorageException: \ Failed to access the database
    */
   @Override
   public String format(LoggingEvent event) {
diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditions.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditions.java
index ba05668..7085768 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditions.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditions.java
@@ -21,6 +21,7 @@
 import static java.util.stream.Collectors.toSet;
 
 import com.google.common.collect.Iterables;
+import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.annotations.PluginName;
 import com.google.gerrit.extensions.api.access.PluginPermission;
 import com.google.gerrit.extensions.common.ProjectInfo;
@@ -42,7 +43,6 @@
 import com.google.gerrit.server.submit.MergeOpRepoManager;
 import com.google.gerrit.server.submit.SubmoduleException;
 import com.google.gerrit.server.submit.SubmoduleOp;
-import com.google.gwtorm.server.OrmException;
 import com.google.inject.Inject;
 import com.google.inject.Provider;
 import com.google.inject.Singleton;
@@ -128,7 +128,7 @@
           throw new CannotDeleteProjectException(
               String.format("Project '%s' has open changes.", projectNameKey.get()));
         }
-      } catch (OrmException e) {
+      } catch (StorageException e) {
         throw new CannotDeleteProjectException(
             String.format("Unable to verify if '%s' has open changes.", projectNameKey.get()));
       }
@@ -143,7 +143,7 @@
             "Cannot delete project because it has at least one child: "
                 + Iterables.getOnlyElement(children).name);
       }
-    } catch (OrmException | PermissionBackendException | RestApiException e) {
+    } catch (StorageException | PermissionBackendException | RestApiException e) {
       throw new CannotDeleteProjectException(
           String.format("Unable to verify if '%s' has children projects.", rsrc.getName()));
     }
diff --git a/src/test/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditionsTest.java b/src/test/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditionsTest.java
index 6658478..a986f28 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditionsTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/deleteproject/DeletePreconditionsTest.java
@@ -23,6 +23,7 @@
 import static org.mockito.Mockito.when;
 
 import com.google.common.collect.ImmutableList;
+import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.access.PluginPermission;
 import com.google.gerrit.extensions.common.ProjectInfo;
 import com.google.gerrit.extensions.restapi.AuthException;
@@ -40,7 +41,6 @@
 import com.google.gerrit.server.restapi.project.ListChildProjects;
 import com.google.gerrit.server.submit.MergeOpRepoManager;
 import com.google.gerrit.server.submit.SubmoduleOp;
-import com.google.gwtorm.server.OrmException;
 import com.google.inject.Provider;
 import org.junit.Before;
 import org.junit.Rule;
@@ -160,7 +160,7 @@
   @Test
   public void testUnableToAssertOpenChanges() throws Exception {
     InternalChangeQuery queryChange = mock(InternalChangeQuery.class);
-    doThrow(OrmException.class).when(queryChange).byProjectOpen(PROJECT_NAMEKEY);
+    doThrow(StorageException.class).when(queryChange).byProjectOpen(PROJECT_NAMEKEY);
     when(queryProvider.get()).thenReturn(queryChange);
     String expectedMessage =
         String.format("Unable to verify if '%s' has open changes.", PROJECT_NAMEKEY.get());