diff --git a/app/src/main/java/io/legado/app/data/entities/BookSource.kt b/app/src/main/java/io/legado/app/data/entities/BookSource.kt
index 0abab30ac..d731a8a94 100644
--- a/app/src/main/java/io/legado/app/data/entities/BookSource.kt
+++ b/app/src/main/java/io/legado/app/data/entities/BookSource.kt
@@ -222,16 +222,25 @@ data class BookSource(
 
     companion object {
 
+        private val gson = GSON.newBuilder()
+            .registerTypeAdapter(ExploreRule::class.java, ExploreRule.jsonDeserializer)
+            .registerTypeAdapter(SearchRule::class.java, SearchRule.jsonDeserializer)
+            .registerTypeAdapter(BookInfoRule::class.java, BookInfoRule.jsonDeserializer)
+            .registerTypeAdapter(TocRule::class.java, TocRule.jsonDeserializer)
+            .registerTypeAdapter(ContentRule::class.java, ContentRule.jsonDeserializer)
+            .registerTypeAdapter(ReviewRule::class.java, ReviewRule.jsonDeserializer)
+            .create()
+
         fun fromJson(json: String): Result<BookSource> {
-            return GSON.fromJsonObject(json)
+            return gson.fromJsonObject(json)
         }
 
         fun fromJsonArray(json: String): Result<List<BookSource>> {
-            return GSON.fromJsonArray(json)
+            return gson.fromJsonArray(json)
         }
 
         fun fromJsonArray(inputStream: InputStream): Result<List<BookSource>> {
-            return GSON.fromJsonArray(inputStream)
+            return gson.fromJsonArray(inputStream)
         }
 
     }
diff --git a/app/src/main/java/io/legado/app/utils/GsonExtensions.kt b/app/src/main/java/io/legado/app/utils/GsonExtensions.kt
index 8946a2c99..b446f01a9 100644
--- a/app/src/main/java/io/legado/app/utils/GsonExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/GsonExtensions.kt
@@ -22,12 +22,6 @@ val GSON: Gson by lazy {
         )
         .registerTypeAdapter(Int::class.java, IntJsonDeserializer())
         .registerTypeAdapter(String::class.java, StringJsonDeserializer())
-        .registerTypeAdapter(ExploreRule::class.java, ExploreRule.jsonDeserializer)
-//        .registerTypeAdapter(SearchRule::class.java, SearchRule.jsonDeserializer)
-//        .registerTypeAdapter(BookInfoRule::class.java, BookInfoRule.jsonDeserializer)
-//        .registerTypeAdapter(TocRule::class.java, TocRule.jsonDeserializer)
-//        .registerTypeAdapter(ContentRule::class.java, ContentRule.jsonDeserializer)
-//        .registerTypeAdapter(ReviewRule::class.java, ReviewRule.jsonDeserializer)
         .disableHtmlEscaping()
         .setPrettyPrinting()
         .create()