diff --git a/pom.xml b/pom.xml
index 331f974..7e9c7f4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.13.4.2</version>
+            <version>2.12.3</version>
         </dependency>
 
         <dependency>
diff --git a/src/main/java/com/salesforce/cdp/queryservice/core/QueryServiceConnection.java b/src/main/java/com/salesforce/cdp/queryservice/core/QueryServiceConnection.java
index 3c08855..0727f65 100644
--- a/src/main/java/com/salesforce/cdp/queryservice/core/QueryServiceConnection.java
+++ b/src/main/java/com/salesforce/cdp/queryservice/core/QueryServiceConnection.java
@@ -352,7 +352,10 @@ public boolean isValid(int timeout) throws SQLException {
             }
 
             QueryConfigResponse configResponse = getQueryConfigResponse();
-            this.queryEngineEnum = QueryEngineEnum.fromValue(configResponse.getQueryengine());
+            this.queryEngineEnum = QueryEngineEnum.TRINO;
+            if(configResponse.getQueryengine() != null) {
+                QueryEngineEnum.fromValue(configResponse.getQueryengine());
+            }
             this.isValid = true;
             return true;
         } catch (Exception e) {