diff --git a/requirements.txt b/requirements.txt
index fb4e0e4f85..2f13f6798a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-rsa==3.1.4
+rsa==4.7.2
 absl-py
 jinja2>=2.7
 setuptools>=40.3.0
@@ -20,7 +20,7 @@ blinker>=1.3
 futures>=3.1.1
 packaging
 pandas>=1.1.5
-PyYAML==5.3.1
+PyYAML==5.4.1
 pint>=0.7
 numpy>=1.16.5
 contextlib2>=0.5.1