diff --git a/collection_manager/requirements.txt b/collection_manager/requirements.txt
index fe82ccf..c009018 100644
--- a/collection_manager/requirements.txt
+++ b/collection_manager/requirements.txt
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-PyYAML==5.3.1
+PyYAML==5.4
 pystache==0.5.4
 pysolr==3.9.0
 watchdog==0.10.2