diff --git a/NEWS b/NEWS
index 36aabe8e7..2c2bed990 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+1.5.14.dev0
+ *
+
 1.5.13
  * #373: Document that passphrase is used for Borg keyfile encryption, not just repokey encryption.
  * #404: Add support for ruamel.yaml 0.17.x YAML parsing library.
diff --git a/setup.py b/setup.py
index ad7f93744..c1e33b29f 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = '1.5.13'
+VERSION = '1.5.14.dev0'
 
 
 setup(
diff --git a/test_requirements.txt b/test_requirements.txt
index b595f5bb6..006e74f8b 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -20,7 +20,7 @@ pykwalify==1.7.0
 pytest==6.1.2
 pytest-cov==2.10.1
 python-dateutil==2.8.1
-PyYAML==5.3.1
+PyYAML==5.4.1
 regex; python_version >= '3.8'
 requests==2.25.0
 ruamel.yaml>0.15.0,<0.18.0