diff --git a/pyproject.toml b/pyproject.toml
index 805b10b..7d111ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ classifiers = [
 requires-python = ">=3.10"
 dependencies = [
     "anyio==4.14.1",
-    "certifi==2026.6.17",
+    "certifi==2026.7.22",
     "cffi==2.0.0",
     "cryptography==49.0.0",
     "exceptiongroup==1.3.1",
diff --git a/requirements.txt b/requirements.txt
index aadf762..cc65946 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 anyio==4.14.1
-certifi==2026.6.17
+certifi==2026.7.22
 cffi==2.0.0
 cryptography==49.0.0
 exceptiongroup==1.3.1