diff --git a/requirements.txt b/requirements.txt
index ac1d0ca..264e640 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,43 +1,43 @@
 alabaster==0.7.12
 atomicwrites==1.2.1
 attrs==18.2.0
-Babel==2.6.0
-certifi==2018.10.15
+Babel==2.9.1
+certifi==2023.7.22
 chardet==3.0.4
 Click==7.0
 coverage==4.5.1
 DAWG==0.7.8
 docutils==0.14
 filelock==3.0.9
-Flask==1.0.2
-gunicorn==19.9.0
+Flask==2.2.5
+gunicorn==22.0.0
 html5lib==1.0.1
-idna==2.7
+idna==3.7
 imagesize==1.1.0
 ItsDangerous==1.1.0
-Jinja2==2.10
-joblib==0.12.5
+Jinja2==3.1.3
+joblib==1.2.0
 -e git+https://github.com/adsva/python-wapiti.git@e00d4782759c3fd506886c773fc5bf272919b2d0#egg=libwapiti
-lxml==4.2.5
+lxml==4.9.1
 MarkupSafe==1.1.1
 more-itertools==4.3.0
 multidict==4.4.2
-numpy==1.15.2
+numpy==1.22.0
 numpydoc==0.8.0
 orderedmultidict==1.0
 packaging==18.0
 pluggy==0.8.0
-py==1.7.0
+py==1.11.0
 Pygments==2.2.0
 pyparsing==2.2.2
 pytest==3.9.1
 pytest-cov==2.6.0
 python-crfsuite==0.9.6
 pytz==2018.5
-requests==2.20.0
+requests==2.31.0
 requests-file==1.4.3
-scikit-learn==0.20.0
-scipy==1.1.0
+scikit-learn==0.23.1
+scipy==1.11.1
 six==1.11.0
 sklearn-crfsuite==0.3.6
 snowballstemmer==1.2.1
@@ -48,9 +48,9 @@ tldextract==2.2.0
 toml==0.10.0
 tox==3.5.2
 tqdm==4.27.0
-urllib3==1.24
+urllib3==1.26.18
 virtualenv==16.0.0
 webencodings==0.5.1
 webstruct==0.6
-Werkzeug==0.14.1
+Werkzeug==2.3.8
 yarl==1.2.6