diff --git a/jars/openapi-codegen/openapi-generator-cli.jar b/jars/openapi-codegen/openapi-generator-cli-6.6.0.jar
similarity index 53%
rename from jars/openapi-codegen/openapi-generator-cli.jar
rename to jars/openapi-codegen/openapi-generator-cli-6.6.0.jar
index 5d473694..a7b8736b 100644
Binary files a/jars/openapi-codegen/openapi-generator-cli.jar and b/jars/openapi-codegen/openapi-generator-cli-6.6.0.jar differ
diff --git a/swagger-gen/oas_generate.sh b/swagger-gen/oas_generate.sh
index fb2afb2c..3a1daf47 100755
--- a/swagger-gen/oas_generate.sh
+++ b/swagger-gen/oas_generate.sh
@@ -31,7 +31,7 @@ mkdir $SWAGGER_CODEGEN_OUTPUT
 
 #codegen validator
 echo "*** Checking OAS Validator ***"
-VALID_OAS=$(java -jar $OAS_CODEGEN/openapi-generator-cli.jar validate -i $INPUT_SWAGGER)
+VALID_OAS=$(java -jar $OAS_CODEGEN/openapi-generator-cli-6.6.0.jar validate -i $INPUT_SWAGGER)
 echo "*** OAS Validator: " $VALID_OAS
 
 # generate