diff --git a/.gitignore b/.gitignore
index 77eaf11..07a0c3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .idea
 *pyc
 *.out
+*.lock
diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..78953e2
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,15 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+boto3 = "*"
+botocore = "*"
+requests = "*"
+argparse = "*"
+
+[requires]
+python_version = "2.7"
diff --git a/aws_config_to_es/elastic.py b/aws_config_to_es/elastic.py
index 0ea8346..b9d9fe6 100644
--- a/aws_config_to_es/elastic.py
+++ b/aws_config_to_es/elastic.py
@@ -35,18 +35,16 @@ def add(
         json_message_dict["addedIso"] = datetime.datetime.now().isoformat()
         json_message_dict["updatedIso"] = json_message_dict["addedIso"]
 
-        json_message = json.dumps(json_message_dict)
-
         self.log.info("adding item into ES: " + str(json_message_dict))
         if index_id:
             response = requests.put(self.connections + "/" +
                                     index_name + "/" +
                                     doc_type + "/" +
-                                    index_id, data=json_message)
+                                    index_id, json=json_message_dict)
         else:
             response = requests.post(self.connections + "/" +
                                      index_name + "/" +
-                                     doc_type, data=json_message)
+                                     doc_type, json=json_message_dict)
 
         self.log.info(
             "response: " + str(
diff --git a/requirements.txt b/requirements.txt
index 9e66dd6..3f61b89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,4 @@
 boto3
 botocore
 requests
-gzip
-json
 argparse