PyYAML fix

Change-Id: I2517aeb7279958dbb5e6ed83099b77e18242ce03
Signed-off-by: Mark Beierl <mark.beierl@canonical.com>
diff --git a/requirements.txt b/requirements.txt
index ac389fd..a64f597 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@
     #   motor
 python-dateutil==2.8.2
     # via temporalio
-pyyaml==5.3.1
+pyyaml==6.0.1
     # via -r requirements.in
 six==1.16.0
     # via python-dateutil