diff --git a/aptly/publisher/__init__.py b/aptly/publisher/__init__.py
index 6b4984b..3b3aa41 100644
--- a/aptly/publisher/__init__.py
+++ b/aptly/publisher/__init__.py
@@ -13,7 +13,7 @@
 
 def load_publish(publish):
     with open(publish, 'r') as publish_file:
-        return yaml.load(publish_file)
+        return yaml.safe_load(publish_file)
 
 
 class PublishManager(object):
diff --git a/aptly/publisher/__main__.py b/aptly/publisher/__main__.py
index cc5099e..8715142 100644
--- a/aptly/publisher/__main__.py
+++ b/aptly/publisher/__main__.py
@@ -20,7 +20,7 @@
 
 def load_config(config):
     with open(config, 'r') as fh:
-        return yaml.load(fh)
+        return yaml.safe_load(fh)
 
 
 def get_latest_snapshot(snapshots, name):