diff --git a/CHANGELOGS.rst b/CHANGELOGS.rst
index 5ab7192..94aa6c3 100644
--- a/CHANGELOGS.rst
+++ b/CHANGELOGS.rst
@@ -1,6 +1,11 @@
 Change Logs
 ===========
 
+0.4.3
++++++
+
+* :pr:`56`: Add `:hide_err:` option to suppress `[runpythonerror]` from runpython output
+
 0.4.2
 +++++
 
diff --git a/_doc/index.rst b/_doc/index.rst
index 7724d9c..d393840 100644
--- a/_doc/index.rst
+++ b/_doc/index.rst
@@ -54,7 +54,6 @@ Sources available on
 Older versions
 ++++++++++++++
 
+* `0.4.3 <../v0.4.3/index.html>`_
 * `0.4.2 <../v0.4.2/index.html>`_
-* `0.4.1 <../v0.4.1/index.html>`_
-* `0.4.0 <../v0.4.0/index.html>`_
 * `0.3.0 <../v0.3.0/index.html>`_
diff --git a/_unittests/ut_runpython/test_runpython_extension.py b/_unittests/ut_runpython/test_runpython_extension.py
index 99d9a77..0a79898 100644
--- a/_unittests/ut_runpython/test_runpython_extension.py
+++ b/_unittests/ut_runpython/test_runpython_extension.py
@@ -218,6 +218,35 @@ def depart_rp_node(self, node):
         if t1 not in html:
             raise AssertionError(html)
 
+    def test_runpython_hide_err(self):
+        """
+        Test that :hide-err: suppresses [runpythonerror] from the output.
+        """
+        if "enable_disabled_documented_pieces_of_code" in sys.__dict__:
+            raise AssertionError("this case should not be")
+
+        content = """
+                    test a directive
+                    ================
+
+                    .. runpython::
+                        :rst:
+                        :hide-err:
+
+                        import warnings
+                        warnings.warn("deprecated", DeprecationWarning)
+                        print("output line")
+                    """.replace("                    ", "")
+
+        html = rst2html(content, writer_name="rst")
+
+        if "runpythonerror" in html:
+            raise AssertionError(
+                f"[runpythonerror] should not appear in output:\n{html}"
+            )
+        if "output line" not in html:
+            raise AssertionError(f"stdout should still appear in output:\n{html}")
+
     def test_runpython_raw(self):
         """
         this test also test the extension runpython
diff --git a/sphinx_runpython/__init__.py b/sphinx_runpython/__init__.py
index 104ec78..a8a9b0a 100644
--- a/sphinx_runpython/__init__.py
+++ b/sphinx_runpython/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.4.2"
+__version__ = "0.4.3"
 __author__ = "Xavier Dupré"
 __github__ = "https://github.com/sdpython/sphinx-runpython"
 __url__ = "https://sdpython.github.io/doc/sphinx-runpython/dev/"
diff --git a/sphinx_runpython/runpython/sphinx_runpython_extension.py b/sphinx_runpython/runpython/sphinx_runpython_extension.py
index d5a15d6..9d6c54d 100644
--- a/sphinx_runpython/runpython/sphinx_runpython_extension.py
+++ b/sphinx_runpython/runpython/sphinx_runpython_extension.py
@@ -559,6 +559,10 @@ class RunPythonDirective(Directive):
         the script to be stored somewhere in order to retrieve it.
     * ``:debug:`` if ``:rst:`` is used, it shows some information to help
       debugging.
+    * ``:hide-err:`` if present, hides any error or warning output that would
+      otherwise be appended as ``[runpythonerror]`` in the content. This is
+      useful when the code produces stderr output (such as deprecation warnings)
+      that should not appear in the rendered documentation.
 
     Option *rst* can be used the following way::
 
@@ -630,6 +634,7 @@ class RunPythonDirective(Directive):
         "store_in_file": directives.unchanged,
         "linenos": directives.unchanged,
         "debug": directives.unchanged,
+        "hide-err": directives.unchanged,
     }
     has_content = True
     runpython_class = runpython_node
@@ -693,6 +698,7 @@ def run(self):
             "store": "store" in self.options and self.options["store"] in bool_set_,
             "restore": "restore" in self.options
             and self.options["restore"] in bool_set_,
+            "hide-err": "hide-err" in self.options,
         }
 
         if p["setsysvar"] is not None and len(p["setsysvar"]) == 0:
@@ -821,7 +827,7 @@ def run(self):
         if err is not None:
             err = err.rstrip(" \n\r\t")
         content = out
-        if len(err) > 0:
+        if len(err) > 0 and not p["hide-err"]:
             content += "\n[runpythonerror]\n" + err
 
         # add member