diff --git a/NEWS b/NEWS
index fa0034407..ba8e67583 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,7 @@
+1.5.17
+ * #437: Fix error when configuration file contains "umask" option.
+ * Remove test dependency on vim and /dev/urandom.
+
 1.5.16
  * #379: Suppress console output in sample crontab and systemd service files.
  * #407: Fix syslog logging on FreeBSD.
diff --git a/borgmatic/config/schema.yaml b/borgmatic/config/schema.yaml
index 00df52e33..a2f3bea6a 100644
--- a/borgmatic/config/schema.yaml
+++ b/borgmatic/config/schema.yaml
@@ -292,7 +292,7 @@ properties:
                     $borg_base_directory/.config/borg/keys
                 example: /path/to/base/config/keys
             umask:
-                type: string
+                type: integer
                 description: Umask to be used for borg create. Defaults to 0077.
                 example: 0077
             lock_wait:
@@ -787,7 +787,7 @@ properties:
                 example:
                     https://cronhub.io/start/1f5e3410-254c-11e8-b61d-55875966d01
             umask:
-                type: scalar
+                type: integer
                 description: |
                     Umask used when executing hooks. Defaults to the umask that
                     borgmatic is run with.
diff --git a/setup.py b/setup.py
index 80d181554..42cf70d26 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = '1.5.16'
+VERSION = '1.5.17'
 
 
 setup(