diff --git a/httpbin/helpers.py b/httpbin/helpers.py
index b29e1835..fd23dee0 100644
--- a/httpbin/helpers.py
+++ b/httpbin/helpers.py
@@ -131,12 +131,11 @@ def get_headers(hide_env=True):
 
     if hide_env and ('show_env' not in request.args):
         for key in ENV_HEADERS:
-            try:
-                del headers[key]
-            except KeyError:
-                pass
+            # Use the pop method to remove items from the headers dictionary
+            headers.pop(key, None)
+
+    return headers
 
-    return CaseInsensitiveDict(headers.items())
 
 
 def semiflatten(multi):