diff --git a/Flow.Launcher.Core/Plugin/PluginManager.cs b/Flow.Launcher.Core/Plugin/PluginManager.cs
index 8d2c6df2426..59f34de742e 100644
--- a/Flow.Launcher.Core/Plugin/PluginManager.cs
+++ b/Flow.Launcher.Core/Plugin/PluginManager.cs
@@ -7,9 +7,9 @@
 using System.Threading.Tasks;
 using Flow.Launcher.Infrastructure;
 using Flow.Launcher.Infrastructure.Logger;
-using Flow.Launcher.Infrastructure.Storage;
 using Flow.Launcher.Infrastructure.UserSettings;
 using Flow.Launcher.Plugin;
+using ISavable = Flow.Launcher.Plugin.ISavable;
 
 namespace Flow.Launcher.Core.Plugin
 {
@@ -51,6 +51,7 @@ public static void Save()
                 var savable = plugin.Plugin as ISavable;
                 savable?.Save();
             }
+
             API.SavePluginSettings();
         }
 
diff --git a/Flow.Launcher.Infrastructure/Storage/ISavable.cs b/Flow.Launcher.Infrastructure/Storage/ISavable.cs
new file mode 100644
index 00000000000..ba2b58c6a18
--- /dev/null
+++ b/Flow.Launcher.Infrastructure/Storage/ISavable.cs
@@ -0,0 +1,8 @@
+using System;
+
+namespace Flow.Launcher.Infrastructure.Storage
+{
+    [Obsolete("Deprecated as of Flow Launcher v1.8.0, on 2021.06.21. " +
+        "This is used only for Everything plugin v1.4.9 or below backwards compatibility")]
+    public interface ISavable : Plugin.ISavable { }
+}
\ No newline at end of file
diff --git a/Flow.Launcher.Infrastructure/Storage/JsonStorage.cs b/Flow.Launcher.Infrastructure/Storage/JsonStorage.cs
index 43d19bea865..0083ccb87b0 100644
--- a/Flow.Launcher.Infrastructure/Storage/JsonStorage.cs
+++ b/Flow.Launcher.Infrastructure/Storage/JsonStorage.cs
@@ -87,4 +87,8 @@ public void Save()
             File.WriteAllText(FilePath, serialized);
         }
     }
+
+    [Obsolete("Deprecated as of Flow Launcher v1.8.0, on 2021.06.21. " +
+        "This is used only for Everything plugin v1.4.9 or below backwards compatibility")]
+    public class JsonStrorage<T> : JsonStorage<T> where T : new() { }
 }
diff --git a/Flow.Launcher.Infrastructure/Storage/PluginJsonStorage.cs b/Flow.Launcher.Infrastructure/Storage/PluginJsonStorage.cs
index c26aef95dfc..923a1a6b56f 100644
--- a/Flow.Launcher.Infrastructure/Storage/PluginJsonStorage.cs
+++ b/Flow.Launcher.Infrastructure/Storage/PluginJsonStorage.cs
@@ -22,3 +22,4 @@ public PluginJsonStorage(T data) : this()
         }
     }
 }
+
diff --git a/Flow.Launcher/ViewModel/MainViewModel.cs b/Flow.Launcher/ViewModel/MainViewModel.cs
index 4ee15b46d4d..4f6d3be84d3 100644
--- a/Flow.Launcher/ViewModel/MainViewModel.cs
+++ b/Flow.Launcher/ViewModel/MainViewModel.cs
@@ -20,6 +20,7 @@
 using Flow.Launcher.Storage;
 using Flow.Launcher.Infrastructure.Logger;
 using System.Threading.Channels;
+using ISavable = Flow.Launcher.Plugin.ISavable;
 
 namespace Flow.Launcher.ViewModel
 {