diff --git a/model/_requirements-headstart.txt b/model/_requirements-headstart.txt
index 2f457f72..335f99dd 100644
--- a/model/_requirements-headstart.txt
+++ b/model/_requirements-headstart.txt
@@ -29,7 +29,7 @@ pprofile==1.11.0
 pyinstrument==2.0.2
 pytest==3.6.0
 python_speech_features==0.6
-pyyaml==3.12
+pyyaml==5.4
 requests-html==0.9.0
 retry==0.9.2
 #rpy2==2.9.2 # Keep this out of here -- huge thrash risk
diff --git a/model/requirements.txt b/model/requirements.txt
index 93ee919a..dcc3f741 100644
--- a/model/requirements.txt
+++ b/model/requirements.txt
@@ -58,7 +58,7 @@ pytest-testmon==0.9.13
 git+https://github.com/scikit-signal/pytftb@ac2b6a2#egg=pytftb
 python-geohash==0.8.5
 python_speech_features==0.6
-pyyaml==3.12
+pyyaml==5.4
 requests-html==0.9.0
 retry==0.9.2
 # rpy2: