diff --git a/SECURITY.md b/SECURITY.md
index a480849b1..97403d404 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -4,8 +4,9 @@
 
 | Version | Supported          |
 | ------- | ------------------ |
+| 5.0.x   | :white_check_mark: |
 | 4.0.x   | :white_check_mark: |
-| 3.1.x   | :white_check_mark: |
+| 3.1.x   | :x:                |
 | 3.0.x   | :x:                |
 | 2.3.x   | :x:                |
 | 2.2.x   | :x:                |
diff --git a/pythainlp/__init__.py b/pythainlp/__init__.py
index cd8af7444..c5990ac43 100644
--- a/pythainlp/__init__.py
+++ b/pythainlp/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # SPDX-FileCopyrightText: Copyright 2016-2024 PyThaiNLP Project
 # SPDX-License-Identifier: Apache-2.0
-__version__ = "5.0.0"
+__version__ = "5.0.1"
 
 thai_consonants = "กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรลวศษสหฬอฮ"  # 44 chars
 
diff --git a/pythainlp/util/pronounce.py b/pythainlp/util/pronounce.py
index d4476d652..85f0c71ed 100644
--- a/pythainlp/util/pronounce.py
+++ b/pythainlp/util/pronounce.py
@@ -9,9 +9,7 @@
 
 
 kv = KhaveeVerifier()
-all_thai_words_dict = [
-    i for i in list(thai_words()) if len(syllable_tokenize(i)) == 1
-]
+all_thai_words_dict = None
 
 
 def rhyme(word: str) -> List[str]:
@@ -29,7 +27,12 @@ def rhyme(word: str) -> List[str]:
         print(rhyme("จีบ"))
         # output: ['กลีบ', 'กีบ', 'ครีบ', ...]
     """
+    global all_thai_words_dict
     list_sumpus = []
+    if all_thai_words_dict == None:
+        all_thai_words_dict = [
+            i for i in list(thai_words()) if len(syllable_tokenize(i)) == 1
+        ]
     for i in all_thai_words_dict:
         if kv.is_sumpus(word, i) and i != word:
             list_sumpus.append(i)
diff --git a/setup.cfg b/setup.cfg
index cde6f1d7a..0f9349051 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 5.0.0
+current_version = 5.0.1
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\-(?P<release>[a-z]+)(?P<build>\d+))?
diff --git a/setup.py b/setup.py
index 7b979b304..34c22c684 100644
--- a/setup.py
+++ b/setup.py
@@ -161,7 +161,7 @@
 
 setup(
     name="pythainlp",
-    version="5.0.0",
+    version="5.0.1",
     description="Thai Natural Language Processing library",
     long_description=readme,
     long_description_content_type="text/markdown",
@@ -210,7 +210,7 @@
         ],
     },
     project_urls={
-        "Documentation": "https://pythainlp.github.io/docs/4.0/",
+        "Documentation": "https://pythainlp.github.io/docs/5.0/",
         "Tutorials": "https://pythainlp.github.io/tutorials/",
         "Source Code": "https://github.com/PyThaiNLP/pythainlp",
         "Bug Tracker": "https://github.com/PyThaiNLP/pythainlp/issues",