diff --git a/src/sunstone/models/SunstoneViews.rb b/src/sunstone/models/SunstoneViews.rb
index e8c7ef2ea0..1ed7fd7611 100644
--- a/src/sunstone/models/SunstoneViews.rb
+++ b/src/sunstone/models/SunstoneViews.rb
@@ -35,7 +35,11 @@ class SunstoneViews
 
         raise "Sunstone configuration file does not contain default view mode, aborting" if mode.nil?
 
-        @views_config = YAML.load_file(VIEWS_CONFIGURATION_FILE)
+        if Psych::VERSION > '4.0'
+            @views_config = YAML.load_file(VIEWS_CONFIGURATION_FILE, aliases: true)
+        else
+            @views_config = YAML.load_file(VIEWS_CONFIGURATION_FILE)
+        end
 
         base_path = SUNSTONE_ROOT_DIR+'/public/js/'
 
@@ -49,7 +53,11 @@ class SunstoneViews
             reg = VIEWS_CONFIGURATION_DIR + mode + '/'
             m = p_path.match(/^#{reg}(.*).yaml$/)
             if m && m[1]
-                @views[m[1]] = YAML.load_file(p_path)
+                if Psych::VERSION > '4.0'
+                    @views[m[1]] = YAML.load_file(p_path, aliases: true)
+                else
+                    @views[m[1]] = YAML.load_file(p_path)
+                end
             end
         end
     end
diff --git a/src/sunstone/sunstone-server.rb b/src/sunstone/sunstone-server.rb
index a2d85e41d1..8464d2a398 100755
--- a/src/sunstone/sunstone-server.rb
+++ b/src/sunstone/sunstone-server.rb
@@ -158,7 +158,11 @@ end
 ##############################################################################
 
 begin
-    $conf = YAML.load_file(CONFIGURATION_FILE)
+    if Psych::VERSION > '4.0'
+        $conf = YAML.load_file(CONFIGURATION_FILE, aliases: true)
+    else
+        $conf = YAML.load_file(CONFIGURATION_FILE)
+    end
 rescue Exception => e
     STDERR.puts "Error parsing config file #{CONFIGURATION_FILE}: #{e.message}"
     exit 1
@@ -359,7 +363,11 @@ helpers do
     def build_conf_locals
         logos_conf = nil
         begin
-            logos_conf = YAML.load_file(LOGOS_CONFIGURATION_FILE)
+            if Psych::VERSION > '4.0'
+                logos_conf = YAML.load_file(LOGOS_CONFIGURATION_FILE, aliases: true)
+            else
+                logos_conf = YAML.load_file(LOGOS_CONFIGURATION_FILE)
+            end
         rescue Exception => e
             logger.error { "Error parsing config file #{LOGOS_CONFIGURATION_FILE}: #{e.message}" }
             error 500, ""