diff --git a/src/main/java/net/snowflake/client/jdbc/SnowflakeConnectionV1.java b/src/main/java/net/snowflake/client/jdbc/SnowflakeConnectionV1.java
index 23ce7d2ef..e93a38d08 100644
--- a/src/main/java/net/snowflake/client/jdbc/SnowflakeConnectionV1.java
+++ b/src/main/java/net/snowflake/client/jdbc/SnowflakeConnectionV1.java
@@ -726,7 +726,7 @@ public String getClientInfo(String name) throws SQLException {
   @Override
   public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
     logger.trace("Array createArrayOf(String typeName, Object[] " + "elements)", false);
-    return new SfSqlArray(JDBCType.valueOf(typeName).getVendorTypeNumber(), elements);
+    return new SfSqlArray(JDBCType.valueOf(typeName.toUpperCase()).getVendorTypeNumber(), elements);
   }
 
   @Override
diff --git a/src/test/java/net/snowflake/client/jdbc/BindingAndInsertingStructuredTypesLatestIT.java b/src/test/java/net/snowflake/client/jdbc/BindingAndInsertingStructuredTypesLatestIT.java
index 55cdf9996..78b55e756 100644
--- a/src/test/java/net/snowflake/client/jdbc/BindingAndInsertingStructuredTypesLatestIT.java
+++ b/src/test/java/net/snowflake/client/jdbc/BindingAndInsertingStructuredTypesLatestIT.java
@@ -272,8 +272,11 @@ public void testWriteArray(ResultSetFormatType queryResultFormat) throws SQLExce
       statement.execute(" CREATE OR REPLACE TABLE array_of_integers(arrayInt ARRAY(INTEGER))");
 
       Array array = connection.createArrayOf("INTEGER", new Integer[] {1, 2, 3});
+      Array arrayFromLowerCaseType = connection.createArrayOf("integer", new Integer[] {1, 2, 3});
       stmt.setArray(1, array);
       stmt.executeUpdate();
+      stmt.setArray(1, arrayFromLowerCaseType);
+      stmt.executeUpdate();
 
       try (ResultSet resultSet = statement.executeQuery("SELECT * from array_of_integers"); ) {
         resultSet.next();
@@ -282,6 +285,10 @@ public void testWriteArray(ResultSetFormatType queryResultFormat) throws SQLExce
         assertEquals(Long.valueOf(1), resultArray[0]);
         assertEquals(Long.valueOf(2), resultArray[1]);
         assertEquals(Long.valueOf(3), resultArray[2]);
+
+        resultSet.next();
+        Long[] resultArrayFromLowerCaseType = (Long[]) resultSet.getArray(1).getArray();
+        assertArrayEquals(resultArray, resultArrayFromLowerCaseType);
       }
     }
   }