diff --git a/.gitignore b/.gitignore
index 768a62635..340aeed56 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 *.swp
 .cache
 .coverage
+.pytest_cache
 .tox
 build
 dist
diff --git a/NEWS b/NEWS
index b29c11b04..7b07fe5f4 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,6 @@
 1.2.1.dev0
  * Skip before/after backup hooks when only doing --prune, --check, --list, and/or --info.
+ * #38, #76: Upgrade ruamel.yaml compatibility version range and fix support for Python 3.7.
 
 1.2.0
  * #61: Support for Borg --list option via borgmatic command-line to list all archives.
diff --git a/setup.py b/setup.py
index 620b8e4dc..a451f513f 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@ setup(
     ],
     install_requires=(
         'pykwalify>=1.6.0',
-        'ruamel.yaml<=0.15',
+        'ruamel.yaml>0.15.0,<0.16.0',
         'setuptools',
     ),
     tests_require=(
diff --git a/test_requirements.txt b/test_requirements.txt
index 6bf66e087..5335c20f2 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,5 +1,5 @@
 flexmock==0.10.2
-pykwalify==1.6.0
-pytest==2.9.1
+pykwalify==1.6.1
+pytest==3.6.3
 pytest-cov==2.5.1
-ruamel.yaml==0.15.18
+ruamel.yaml>0.15.0,<0.16.0