diff --git a/lib/k8s/config.rb b/lib/k8s/config.rb
index ba76764..9c5a6f1 100644
--- a/lib/k8s/config.rb
+++ b/lib/k8s/config.rb
@@ -111,7 +111,10 @@ class NamedContext < ConfigStruct
     # @param path [String]
     # @return [K8s::Config]
     def self.load_file(path)
-      new(YAML.safe_load(File.read(File.expand_path(path)), [Time, DateTime, Date], [], true))
+      new(YAML.safe_load(File.read(File.expand_path(path)),
+                         permitted_classes: [Time, DateTime, Date],
+                         permitted_symbols: [],
+                         aliases: true))
     end
 
     # Loads configuration files listed in KUBE_CONFIG environment variable and
diff --git a/lib/k8s/resource.rb b/lib/k8s/resource.rb
index 0bf2703..c314efc 100644
--- a/lib/k8s/resource.rb
+++ b/lib/k8s/resource.rb
@@ -23,7 +23,7 @@ def self.from_json(data)
     # @param filename [String] file path
     # @return [K8s::Resource]
     def self.from_file(filename)
-      new(YAML.safe_load(File.read(filename), [], [], true, filename))
+      new(YAML.safe_load(File.read(filename), permitted_classes: [], permitted_symbols: [], aliases: true, filename: filename))
     end
 
     # @param path [String] file path