diff --git a/conda/conda-reqs.txt b/conda/conda-reqs.txt
index 95d52571..2818f544 100644
--- a/conda/conda-reqs.txt
+++ b/conda/conda-reqs.txt
@@ -48,7 +48,7 @@ scikit-learn>=1.0.0
 scipy
 setuptools>=40.6.3
 statsmodels
-tldextract>=2.2.2
+tldextract>=5.3.1
 tornado>=6.4.2  # (sec vuln) transitive dependency via bokeh
 tqdm>=4.36.1
 typing-extensions>=4.15.0
diff --git a/requirements-all.txt b/requirements-all.txt
index ec78851a..be97aa34 100644
--- a/requirements-all.txt
+++ b/requirements-all.txt
@@ -45,7 +45,7 @@ ipython>=8.39.0; python_version <= "3.10"
 pyyaml>=3.13
 pydantic<3.0.0,>=1.8.0
 pandas<3.0.0,>=1.4.0
-tldextract>=2.2.2
+tldextract>=5.3.1
 azure-storage-blob>=12.28.0
 jinja2>=3.1.5
 urllib3>=2.6.3
diff --git a/requirements.txt b/requirements.txt
index 164ffec6..95024307 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ python-dateutil>=2.8.1  # pandas
 pytz>=2019.2  # pandas
 pyyaml>=3.13
 setuptools>=40.6.3
-tldextract>=2.2.2
+tldextract>=5.3.1
 tornado>=6.4.2  # (sec vuln) transitive dependency via bokeh
 tqdm>=4.36.1
 typing-extensions>=4.15.0