diff --git a/synse_server/api/http.py b/synse_server/api/http.py
index e057156f..1e9502ce 100644
--- a/synse_server/api/http.py
+++ b/synse_server/api/http.py
@@ -410,7 +410,10 @@ async def response_streamer(response):
         # just log it and move on.
         try:
             async for reading in cmd.read_cache(start, end):
-                await response.write(ujson.dumps(reading) + '\n')
+                try:
+                    await response.write(ujson.dumps(reading, reject_bytes=False) + '\n')
+                except Exception:
+                    logger.exception('error streaming cached reading response', reading=reading)
         except Exception:
             logger.exception('failure when streaming cached readings')
 
diff --git a/synse_server/utils.py b/synse_server/utils.py
index 7482dba3..991b398b 100644
--- a/synse_server/utils.py
+++ b/synse_server/utils.py
@@ -66,7 +66,7 @@ def _dumps(*arg, **kwargs) -> str:
     Returns:
         The given dictionary data dumped to a JSON string.
     """
-    out = ujson.dumps(*arg, **kwargs)
+    out = ujson.dumps(*arg, reject_bytes=False, **kwargs)
     if not out.endswith('\n'):
         out += '\n'
     return out