diff --git a/requirements-dev.txt b/requirements-dev.txt
index b4a0ebc..d317a50 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -8,7 +8,7 @@ alabaster==1.0.0
     # via sphinx
 babel==2.18.0
     # via sphinx
-certifi==2026.2.25
+certifi==2026.4.22
     # via requests
 charset-normalizer==3.4.7
     # via requests
diff --git a/requirements.txt b/requirements.txt
index 4da9c7d..e09ce87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --output-file=requirements.txt --strip-extras pyproject.toml
 #
-certifi==2026.2.25
+certifi==2026.4.22
     # via requests
 charset-normalizer==3.4.7
     # via requests