diff --git a/README.md b/README.md
index f89401f..1bf1778 100644
--- a/README.md
+++ b/README.md
@@ -342,7 +342,7 @@ print(f'Run time: {time:.2f}s')
 rules.to_csv('output.csv')
 ```
 
-**Note:** You may need to download stopwords and the punkt tokenizer from nltk by running `import nltk; nltk.download('stopwords'); nltk.download('punkt')`.
+**Note:** You may need to download stopwords and the punkt_tab tokenizer from nltk by running `import nltk; nltk.download('stopwords'); nltk.download('punkt_tab')`.
 
 For a full list of examples see the [examples folder](https://github.com/firefly-cpp/NiaARM/tree/main/examples)
 in the GitHub repository.
diff --git a/docs/getting_started.rst b/docs/getting_started.rst
index c48d740..2974db6 100644
--- a/docs/getting_started.rst
+++ b/docs/getting_started.rst
@@ -285,7 +285,7 @@ added to the :mod:`niaarm.mine` module.
         print('No rules generated')
         print(f'Run time: {time:.2f}s')
 
-**Note:** You may need to download stopwords and the punkt tokenizer from nltk by running `import nltk; nltk.download('stopwords'); nltk.download('punkt')`.
+**Note:** You may need to download stopwords and the punkt_tab tokenizer from nltk by running `import nltk; nltk.download('stopwords'); nltk.download('punkt_tab')`.
 
 **Output:**
 
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 4ce5c58..fb2931c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 niapy>=2.5.2,<3.0.0
-numpy>=1.26.1,<2.0.0
-pandas>=2.1.1,<3.0.0
+numpy>=1.22.4
+pandas>=2.2.2,<3.0.0
 nltk>=3.8.1,<4.0.0
 plotly>=5.22.0,<6.0.0
 scikit-learn>=1.5.1,<2.0.0
diff --git a/examples/text_mining.py b/examples/text_mining.py
index 62ddbcc..c4d6d10 100644
--- a/examples/text_mining.py
+++ b/examples/text_mining.py
@@ -7,13 +7,13 @@
 df = pd.read_json("datasets/text/artm_test_dataset.json", orient="records")
 documents = df["text"].tolist()
 
-# create a Corpus object from the documents (requires nltk's punkt tokenizer and the stopwords list)
+# create a Corpus object from the documents (requires nltk's punkt_tab tokenizer and the stopwords list)
 try:
     corpus = Corpus.from_list(documents)
 except LookupError:
     import nltk
 
-    nltk.download("punkt")
+    nltk.download("punkt_tab")
     nltk.download("stopwords")
     corpus = Corpus.from_list(documents)
 
diff --git a/poetry.lock b/poetry.lock
index 1ea45ca..0b55322 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -2046,7 +2046,7 @@ version = "2.5.0"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 optional = false
 python-versions = ">=3.9"
-groups = ["dev", "docs"]
+groups = ["docs"]
 files = [
     {file = "urllib3-2.5.0-py3-none-any.whl", hash = "sha256:e6b01673c0fa6a13e374b50871808eb3bf7046c4b125b216f6bf1cc604cff0dc"},
     {file = "urllib3-2.5.0.tar.gz", hash = "sha256:3fc47733c7e419d4bc3f6b3dc2b4f890bb743906a30d56ba4a5bfa4bbff92760"},
@@ -2103,4 +2103,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.9,<3.14"
-content-hash = "c818a4593c4764d9d7dff76f946284a4092d34703abc836228b3a91d2b34f87b"
+content-hash = "bfc1128d5f51a60b4f59e51d1621bbc4e9e699af5750c4d509e2ac0df0f968d5"
diff --git a/pyproject.toml b/pyproject.toml
index 471ea76..6945102 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,8 +20,8 @@ include = [
 [tool.poetry.dependencies]
 python = ">=3.9,<3.14"
 niapy = "^2.5.2"
-numpy = "^1.26.1"
-pandas = "^2.1.1"
+numpy = ">=1.22.4"
+pandas = "^2.2.2"
 nltk = "^3.8.1"
 tomli = { version = "^2.0.1", python = "<3.11" }
 plotly = "^5.22.0"
diff --git a/tests/test_text_mining.py b/tests/test_text_mining.py
index 6da1109..15e9087 100644
--- a/tests/test_text_mining.py
+++ b/tests/test_text_mining.py
@@ -10,7 +10,7 @@
 
 class TestTextMining(TestCase):
     def setUp(self):
-        nltk.download("punkt")
+        nltk.download("punkt_tab")
         nltk.download("stopwords")
         ds_path = os.path.join(
             os.path.dirname(__file__), "test_data", "artm_test_dataset.json"