diff --git a/project/src/controllers/GameController.ts b/project/src/controllers/GameController.ts
index 742aa2a3..653a08ee 100644
--- a/project/src/controllers/GameController.ts
+++ b/project/src/controllers/GameController.ts
@@ -159,9 +159,16 @@ export class GameController {
                 return;
             }
 
+            if (typeof fullProfile.spt.migrations === "undefined") {
+                fullProfile.spt.migrations = {};
+            }
+
             //3.9 migrations
-            if (fullProfile.spt.version.includes("3.9")) {
+            if (fullProfile.spt.version.includes("3.9.") && !fullProfile.spt.migrations["39x"]) {
                 this.migrate39xProfile(fullProfile);
+
+                // Flag as migrated
+                fullProfile.spt.migrations["39x"] = this.timeUtil.getTimestamp();
             }
 
             if (Array.isArray(fullProfile.characters.pmc.WishList)) {
diff --git a/project/src/models/eft/profile/ISptProfile.ts b/project/src/models/eft/profile/ISptProfile.ts
index fbc5ae56..5dfe6079 100644
--- a/project/src/models/eft/profile/ISptProfile.ts
+++ b/project/src/models/eft/profile/ISptProfile.ts
@@ -195,6 +195,8 @@ export interface Spt {
     blacklistedItemTpls?: string[];
     /** key: daily type */
     freeRepeatableRefreshUsedCount?: Record<string, number>;
+    /** When was a profile migrated, value is timestamp */
+    migrations?: Record<string, number>;
 }
 
 export interface ModDetails {