diff --git a/poetry.lock b/poetry.lock
index a9ce086..9af6e24 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -91,13 +91,13 @@ uvloop = ["uvloop (>=0.15.2)"]
 
 [[package]]
 name = "certifi"
-version = "2025.11.12"
+version = "2026.1.4"
 description = "Python package for providing Mozilla's CA Bundle."
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "certifi-2025.11.12-py3-none-any.whl", hash = "sha256:97de8790030bbd5c2d96b7ec782fc2f7820ef8dba6db909ccf95449f2d062d4b"},
-    {file = "certifi-2025.11.12.tar.gz", hash = "sha256:d8ab5478f2ecd78af242878415affce761ca6bc54a22a27e026d7c25357c3316"},
+    {file = "certifi-2026.1.4-py3-none-any.whl", hash = "sha256:9943707519e4add1115f44c2bc244f782c0249876bf51b6599fee1ffbedd685c"},
+    {file = "certifi-2026.1.4.tar.gz", hash = "sha256:ac726dd470482006e014ad384921ed6438c457018f4b3d204aea4281258b2120"},
 ]
 
 [[package]]
diff --git a/pyproject.toml b/pyproject.toml
index 2a24429..3cdcf64 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "peopledatalabs"
-version = "6.4.10"
+version = "6.4.11"
 description = "Official Python client for the People Data Labs API"
 homepage = "https://www.peopledatalabs.com"
 repository = "https://github.com/peopledatalabs/peopledatalabs-python"
diff --git a/requirements.txt b/requirements.txt
index 33bdfaf..ef48daf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
 annotated-types==0.7.0 ; python_version >= "3.8" and python_version < "4.0" \
     --hash=sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53 \
     --hash=sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89
-certifi==2025.11.12 ; python_version >= "3.8" and python_version < "4.0" \
-    --hash=sha256:97de8790030bbd5c2d96b7ec782fc2f7820ef8dba6db909ccf95449f2d062d4b \
-    --hash=sha256:d8ab5478f2ecd78af242878415affce761ca6bc54a22a27e026d7c25357c3316
+certifi==2026.1.4 ; python_version >= "3.8" and python_version < "4.0" \
+    --hash=sha256:9943707519e4add1115f44c2bc244f782c0249876bf51b6599fee1ffbedd685c \
+    --hash=sha256:ac726dd470482006e014ad384921ed6438c457018f4b3d204aea4281258b2120
 charset-normalizer==3.4.4 ; python_version >= "3.8" and python_version < "4.0" \
     --hash=sha256:027f6de494925c0ab2a55eab46ae5129951638a49a34d87f4c3eda90f696b4ad \
     --hash=sha256:077fbb858e903c73f6c9db43374fd213b0b6a778106bc7032446a8e8b5b38b93 \
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 516ef34..1cafdc9 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -30,9 +30,9 @@ black==24.8.0 ; python_version >= "3.8" and python_version < "4.0" \
     --hash=sha256:eab4dd44ce80dea27dc69db40dab62d4ca96112f87996bca68cd75639aeb2e4c \
     --hash=sha256:f490dbd59680d809ca31efdae20e634f3fae27fba3ce0ba3208333b713bc3920 \
     --hash=sha256:fb6e2c0b86bbd43dee042e48059c9ad7830abd5c94b0bc518c0eeec57c3eddc1
-certifi==2025.11.12 ; python_version >= "3.8" and python_version < "4.0" \
-    --hash=sha256:97de8790030bbd5c2d96b7ec782fc2f7820ef8dba6db909ccf95449f2d062d4b \
-    --hash=sha256:d8ab5478f2ecd78af242878415affce761ca6bc54a22a27e026d7c25357c3316
+certifi==2026.1.4 ; python_version >= "3.8" and python_version < "4.0" \
+    --hash=sha256:9943707519e4add1115f44c2bc244f782c0249876bf51b6599fee1ffbedd685c \
+    --hash=sha256:ac726dd470482006e014ad384921ed6438c457018f4b3d204aea4281258b2120
 charset-normalizer==3.4.4 ; python_version >= "3.8" and python_version < "4.0" \
     --hash=sha256:027f6de494925c0ab2a55eab46ae5129951638a49a34d87f4c3eda90f696b4ad \
     --hash=sha256:077fbb858e903c73f6c9db43374fd213b0b6a778106bc7032446a8e8b5b38b93 \
diff --git a/src/peopledatalabs/__init__.py b/src/peopledatalabs/__init__.py
index aa255d2..b42d12a 100644
--- a/src/peopledatalabs/__init__.py
+++ b/src/peopledatalabs/__init__.py
@@ -5,6 +5,6 @@
 from .main import PDLPY
 
 
-__version__ = "6.4.10"
+__version__ = "6.4.11"
 
 __all__ = ["PDLPY"]
diff --git a/src/peopledatalabs/settings.py b/src/peopledatalabs/settings.py
index 883e6fd..e6a15f1 100644
--- a/src/peopledatalabs/settings.py
+++ b/src/peopledatalabs/settings.py
@@ -19,7 +19,7 @@ class Settings:
     version: str = "v5"
     version_re: str = r"^v[0-9]$"
     sandbox_base_path: HttpUrl = "https://sandbox.api.peopledatalabs.com/"
-    sdk_version: str = "6.4.10"
+    sdk_version: str = "6.4.11"
 
 
 settings = Settings()
diff --git a/tests/client/test_client.py b/tests/client/test_client.py
index 6fe1876..3b42f4d 100644
--- a/tests/client/test_client.py
+++ b/tests/client/test_client.py
@@ -19,7 +19,7 @@ def test_version():
     """
     Version check.
     """
-    assert __version__ == "6.4.10"
+    assert __version__ == "6.4.11"
 
 
 @pytest.mark.usefixtures("fake_api_key")