diff --git a/JsonOutput/JsonOutput.py b/JsonOutput/JsonOutput.py
index 926891d..78bd152 100644
--- a/JsonOutput/JsonOutput.py
+++ b/JsonOutput/JsonOutput.py
@@ -1,6 +1,7 @@
 import yaml
 import json
 import os
+import logging
 
 RMMDIR = './RMMs'
 OUTDIR = './ci-output'
@@ -8,6 +9,7 @@
 
 rmms = {}
 for filename in os.listdir(RMMDIR):
+    logging.warning('Processing RMM: %s', filename)
     file = os.path.join(RMMDIR, filename)
     if os.path.isfile(file):
         with open(file, 'r') as f:
@@ -18,5 +20,5 @@
 if not os.path.exists(OUTDIR):
     os.mkdir(OUTDIR)
 with open(OUTFILE, 'w') as f:
-    f.write(json.dumps(rmms, indent=2))
+    f.write(json.dumps(rmms, indent=2, default=str))
 
diff --git a/Validator/_validate_yml.py b/Validator/_validate_yml.py
index 64b3b76..d21d095 100644
--- a/Validator/_validate_yml.py
+++ b/Validator/_validate_yml.py
@@ -2,6 +2,7 @@
 import sys
 import os
 import datetime
+import json
 
 RMMDIR = './RMMs'
 OSES = ['Windows','MacOS','Linux']
@@ -74,6 +75,12 @@ def check_meta(r, meta):
     if not isinstance(meta['References'], list):
         ERRORS.append(f"References on {r} isn't a list")
 
+def check_serialize(r, rmm_test):
+    try:
+        _jout = json.dumps(rmm_test, indent=2, default=str)
+    except Exception as ex: # pylint: disable=broad-except
+        ERRORS.append(f'Couldnt JSON serialize RMM: {r}! Exception: {ex}')
+
 
 IDs = set()
 for filename in os.listdir(RMMDIR):
@@ -107,6 +114,7 @@ def check_meta(r, meta):
         check_executables(rmm_name, rmm['Executables'])
         check_netconn(rmm_name, rmm['NetConn'])
         check_meta(rmm_name, rmm['Meta'])
+        check_serialize(rmm_name, rmm)
 if len(ERRORS) == 0:
     sys.exit(0)
 else: