diff --git a/requirements-build.txt b/requirements-build.txt
index 9ee1e6a..ddd03a3 100644
--- a/requirements-build.txt
+++ b/requirements-build.txt
@@ -6,7 +6,7 @@
 #
 build==1.3.0
     # via wr-cloner (pyproject.toml)
-certifi==2025.11.12
+certifi==2026.1.4
     # via requests
 charset-normalizer==3.4.4
     # via requests
diff --git a/requirements-dev.txt b/requirements-dev.txt
index b7304f6..1b1d61d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -6,7 +6,7 @@
 #
 build==1.3.0
     # via pip-tools
-certifi==2025.11.12
+certifi==2026.1.4
     # via requests
 charset-normalizer==3.4.4
     # via requests
diff --git a/requirements.txt b/requirements.txt
index 89b84a6..584c5fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 #
 #    make freeze
 #
-certifi==2025.11.12
+certifi==2026.1.4
     # via requests
 charset-normalizer==3.4.4
     # via requests