diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab2215cf..0e74ce6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change log
 
+## v0.7.2
+
+* Pydantic model is used for input validation.
+* Support NaN, -inf and inf in metadata and metrics.
+
 ## v0.7.0
 
 * Collect CPU, GPU and memory resource metrics.
diff --git a/simvue/__init__.py b/simvue/__init__.py
index 6b9c85da..d1a83ba7 100644
--- a/simvue/__init__.py
+++ b/simvue/__init__.py
@@ -2,4 +2,4 @@
 from simvue.client import Client
 from simvue.handler import Handler
 from simvue.models import RunInput
-__version__ = '0.7.1'
+__version__ = '0.7.2'
diff --git a/simvue/api.py b/simvue/api.py
index 8593e95a..435664c4 100644
--- a/simvue/api.py
+++ b/simvue/api.py
@@ -1,3 +1,5 @@
+import copy
+import json
 import requests
 from tenacity import retry, wait_exponential, stop_after_attempt
 
@@ -7,6 +9,15 @@
 RETRY_MAX = 10
 RETRY_STOP = 5
 
+def set_json_header(headers):
+    """
+    Return a copy of the headers with Content-Type set to
+    application/json
+    """
+    headers = copy.deepcopy(headers)
+    headers['Content-Type'] = 'application/json'
+    return headers
+
 @retry(wait=wait_exponential(multiplier=RETRY_MULTIPLIER, min=RETRY_MIN, max=RETRY_MAX),
                              stop=stop_after_attempt(RETRY_STOP))
 def post(url, headers, data, is_json=True):
@@ -14,9 +25,9 @@ def post(url, headers, data, is_json=True):
     HTTP POST with retries
     """
     if is_json:
-        response = requests.post(url, headers=headers, json=data, timeout=DEFAULT_API_TIMEOUT)
-    else:
-        response = requests.post(url, headers=headers, data=data, timeout=DEFAULT_API_TIMEOUT)
+        data = json.dumps(data)
+        headers = set_json_header(headers)
+    response = requests.post(url, headers=headers, data=data, timeout=DEFAULT_API_TIMEOUT)
 
     return response
 
@@ -27,8 +38,8 @@ def put(url, headers, data, is_json=True, timeout=DEFAULT_API_TIMEOUT):
     HTTP PUT with retries
     """
     if is_json:
-        response = requests.put(url, headers=headers, json=data, timeout=timeout)
-    else:
-        response = requests.put(url, headers=headers, data=data, timeout=timeout)
+        data = json.dumps(data)
+        headers = set_json_header(headers)
+    response = requests.put(url, headers=headers, data=data, timeout=timeout)
 
     return response