diff --git a/requirements-dev.txt b/requirements-dev.txt
index bc26c39e9..66f255e17 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -24,5 +24,5 @@ docutils>=0.21.2;python_version <= "3.11"
 docutils>=0.22.4; python_version > "3.11"
 parameterized==0.9.0
 granian[reload]==2.7.4
-basedpyright==1.39.4
+basedpyright==1.39.5
 types-lxml==2026.2.16
diff --git a/requirements.txt b/requirements.txt
index 8626f0604..65b514da1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-certifi==2026.4.22
+certifi==2026.5.20
 babel==2.18.0
 flask-babel==4.0.0
 flask==3.1.3
 jinja2==3.1.6
-lxml==6.1.0
+lxml==6.1.1
 pygments==2.20.0
 python-dateutil==2.9.0.post0
 pyyaml==6.0.3