diff --git a/docs/api/corpus.rst b/docs/api/corpus.rst
index 8f5a98188..09243f944 100644
--- a/docs/api/corpus.rst
+++ b/docs/api/corpus.rst
@@ -122,15 +122,6 @@ pythainlp.corpus.th_en_translit.get_transliteration_dict
 .. autofunction:: pythainlp.corpus.th_en_translit.get_transliteration_dict
    :noindex:
 
-ConceptNet
-----------
-
-ConceptNet is an open, multilingual knowledge graph used for various natural language understanding tasks. For more information, refer to the `ConceptNet documentation <https://github.com/commonsense/conceptnet5/wiki/API>`_.
-
-pythainlp.corpus.conceptnet.edges
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.. autofunction:: pythainlp.corpus.conceptnet.edges
-   :noindex:
 
 TNC (Thai National Corpus)
 ---
diff --git a/pythainlp/corpus/conceptnet.py b/pythainlp/corpus/conceptnet.py
deleted file mode 100644
index 33b01d3d6..000000000
--- a/pythainlp/corpus/conceptnet.py
+++ /dev/null
@@ -1,115 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2016-2025 PyThaiNLP Project
-# SPDX-FileType: SOURCE
-# SPDX-License-Identifier: Apache-2.0
-"""
-Get data from ConceptNet API at http://conceptnet.io
-"""
-import requests
-
-
-def edges(word: str, lang: str = "th"):
-    """
-    Get edges from `ConceptNet <http://api.conceptnet.io/>`_ API.
-    ConceptNet is a public semantic network, designed to help computers
-    understand the meanings of words that people use.
-
-    For example, the term "ConceptNet" is a "knowledge graph", and
-    "knowledge graph" has "common sense knowledge" which is a part of
-    "artificial intelligence". Also, "ConcepNet" is used for
-    "natural language understanding" which is a part of
-    "artificial intelligence".
-
-      | "ConceptNet" --is a--> "knowledge graph" --has--> "common sense"\
-          --a part of--> "artificial intelligence"
-      | "ConceptNet" --used for--> "natural language understanding"\
-          --a part of--> "artificial intelligence"
-
-    With this illustration, it shows relationships (represented as *Edge*)
-    between the terms (represented as *Node*).
-
-    This function requires an internet connection to access the ConceptNet API.
-    Please use it considerately. It will timeout after 10 seconds.
-
-    :param str word: word to be sent to ConceptNet API
-    :param str lang: abbreviation of language (i.e. *th* for Thai, *en* for
-                     English, or *ja* for Japan). By default, it is *th*
-                     (Thai).
-
-    :return: return edges of the given word according to the
-             ConceptNet network.
-    :rtype: list[dict]
-
-    :Example:
-    ::
-
-        from pythainlp.corpus.conceptnet import edges
-
-        edges('hello', lang='en')
-        # output:
-        # [{
-        #   '@id': '/a/[/r/IsA/,/c/en/hello/,/c/en/greeting/]',
-        #   '@type': 'Edge',
-        #   'dataset': '/d/conceptnet/4/en',
-        #   'end': {'@id': '/c/en/greeting',
-        #   '@type': 'Node',
-        #   'label': 'greeting',
-        #   'language': 'en',
-        #   'term': '/c/en/greeting'},
-        #   'license': 'cc:by/4.0',
-        #   'rel': {'@id': '/r/IsA', '@type': 'Relation', 'label': 'IsA'},
-        #   'sources': [
-        #   {
-        #   '@id': '/and/[/s/activity/omcs/vote/,/s/contributor/omcs/bmsacr/]',
-        #   '@type': 'Source',
-        #   'activity': '/s/activity/omcs/vote',
-        #   'contributor': '/s/contributor/omcs/bmsacr'
-        #   },
-        #   {
-        #     '@id': '/and/[/s/activity/omcs/vote/,/s/contributor/omcs/test/]',
-        #     '@type': 'Source',
-        #     'activity': '/s/activity/omcs/vote',
-        #     'contributor': '/s/contributor/omcs/test'}
-        #   ],
-        #   'start': {'@id': '/c/en/hello',
-        #   '@type': 'Node',
-        #   'label': 'Hello',
-        #   'language': 'en',
-        #   'term': '/c/en/hello'},
-        #   'surfaceText': '[[Hello]] is a kind of [[greeting]]',
-        #   'weight': 3.4641016151377544
-        # }, ...]
-
-        edges('สวัสดี', lang='th')
-        # output:
-        # [{
-        #  '@id': '/a/[/r/RelatedTo/,/c/th/สวัสดี/n/,/c/en/prosperity/]',
-        #  '@type': 'Edge',
-        #  'dataset': '/d/wiktionary/en',
-        #  'end': {'@id': '/c/en/prosperity',
-        #  '@type': 'Node',
-        #  'label': 'prosperity',
-        #  'language': 'en',
-        #  'term': '/c/en/prosperity'},
-        #  'license': 'cc:by-sa/4.0',
-        #  'rel': {
-        #      '@id': '/r/RelatedTo', '@type': 'Relation',
-        #      'label': 'RelatedTo'},
-        #  'sources': [{
-        #  '@id': '/and/[/s/process/wikiparsec/2/,/s/resource/wiktionary/en/]',
-        #  '@type': 'Source',
-        #  'contributor': '/s/resource/wiktionary/en',
-        #  'process': '/s/process/wikiparsec/2'}],
-        #  'start': {'@id': '/c/th/สวัสดี/n',
-        #  '@type': 'Node',
-        #  'label': 'สวัสดี',
-        #  'language': 'th',
-        #  'sense_label': 'n',
-        #  'term': '/c/th/สวัสดี'},
-        #  'surfaceText': None,
-        #  'weight': 1.0
-        # }, ...]
-    """
-
-    obj = requests.get(f"https://api.conceptnet.io/c/{lang}/{word}", timeout=10).json()
-    return obj["edges"]
diff --git a/tests/core/test_corpus.py b/tests/core/test_corpus.py
index 33d53fff6..dfb13e7bf 100644
--- a/tests/core/test_corpus.py
+++ b/tests/core/test_corpus.py
@@ -9,7 +9,6 @@
 from requests import Response
 
 from pythainlp.corpus import (
-    conceptnet,
     countries,
     download,
     find_synonyms,
@@ -39,9 +38,6 @@
 
 
 class CorpusTestCase(unittest.TestCase):
-    def test_conceptnet(self):
-        self.assertIsNotNone(conceptnet.edges("รัก"))
-
     def test_corpus(self):
         self.assertIsInstance(thai_negations(), frozenset)
         self.assertGreater(len(thai_negations()), 0)