diff --git a/requirements-base.txt b/requirements-base.txt
index 79ef6714c5fb50..b0c0f3c4035fd5 100644
--- a/requirements-base.txt
+++ b/requirements-base.txt
@@ -26,7 +26,7 @@ googleapis-common-protos>=1.56.4
 google-crc32c>=1.3.0
 isodate>=0.6.1
 jsonschema>=3.2.0
-lxml>=4.6.5
+lxml>=4.9.1
 maxminddb>=2.0.3
 mistune>=2.0.3
 mmh3>=3.0.0
@@ -43,7 +43,7 @@ python-dateutil>=2.8.1
 python-memcached>=1.59
 python-u2flib-server>=5.0.0
 fido2>=0.9.2
-python3-saml>=1.14.0
+python3-saml>=1.15.0
 PyYAML>=5.4
 rb>=1.9.0
 redis-py-cluster>=2.1.0
diff --git a/requirements-dev-frozen.txt b/requirements-dev-frozen.txt
index 634619a15bc887..ee28eb192f69aa 100644
--- a/requirements-dev-frozen.txt
+++ b/requirements-dev-frozen.txt
@@ -76,7 +76,7 @@ jmespath==0.10.0
 jsonschema==3.2.0
 kombu==4.6.11
 lazy-object-proxy==1.7.1
-lxml==4.6.5
+lxml==4.9.1
 lxml-stubs==0.4.0
 maxminddb==2.0.3
 mccabe==0.7.0
@@ -136,7 +136,7 @@ python-memcached==1.59
 python-rapidjson==1.8
 python-u2flib-server==5.0.0
 python-utils==3.3.3
-python3-saml==1.14.0
+python3-saml==1.15.0
 pytz==2018.9
 pyupgrade==3.2.3
 pyuwsgi==2.0.20.0
diff --git a/requirements-frozen.txt b/requirements-frozen.txt
index 9f9e696d72fcd7..8aa1f403e92677 100644
--- a/requirements-frozen.txt
+++ b/requirements-frozen.txt
@@ -57,7 +57,7 @@ isodate==0.6.1
 jmespath==0.10.0
 jsonschema==3.2.0
 kombu==4.6.11
-lxml==4.6.5
+lxml==4.9.1
 maxminddb==2.0.3
 milksnake==0.1.5
 mistune==2.0.4
@@ -91,7 +91,7 @@ python-memcached==1.59
 python-rapidjson==1.8
 python-u2flib-server==5.0.0
 python-utils==3.3.3
-python3-saml==1.14.0
+python3-saml==1.15.0
 pytz==2018.9
 pyuwsgi==2.0.20.0
 pyvat==1.3.15