diff --git a/submodules/TelegramApi/Sources/Api0.swift b/submodules/TelegramApi/Sources/Api0.swift
index df189d76b7..40df63d7b4 100644
--- a/submodules/TelegramApi/Sources/Api0.swift
+++ b/submodules/TelegramApi/Sources/Api0.swift
@@ -721,7 +721,7 @@ fileprivate let parsers: [Int32 : (BufferReader) -> Any?] = {
     dict[-104284986] = { return Api.WebDocument.parse_webDocumentNoProxy($0) }
     dict[475467473] = { return Api.WebDocument.parse_webDocument($0) }
     dict[1211967244] = { return Api.Theme.parse_themeDocumentNotModified($0) }
-    dict[975846885] = { return Api.Theme.parse_theme($0) }
+    dict[-136770336] = { return Api.Theme.parse_theme($0) }
     dict[-1290580579] = { return Api.contacts.Found.parse_found($0) }
     dict[-368018716] = { return Api.ChannelAdminLogEventsFilter.parse_channelAdminLogEventsFilter($0) }
     dict[1889961234] = { return Api.PeerNotifySettings.parse_peerNotifySettingsEmpty($0) }
diff --git a/submodules/TelegramApi/Sources/Api1.swift b/submodules/TelegramApi/Sources/Api1.swift
index 691815d5fa..c564b24423 100644
--- a/submodules/TelegramApi/Sources/Api1.swift
+++ b/submodules/TelegramApi/Sources/Api1.swift
@@ -18231,7 +18231,7 @@ public extension Api {
     }
     public enum Theme: TypeConstructorDescription {
         case themeDocumentNotModified
-        case theme(flags: Int32, id: Int64, accessHash: Int64, slug: String, title: String, document: Api.Document?)
+        case theme(flags: Int32, id: Int64, accessHash: Int64, slug: String, title: String, document: Api.Document?, installsCount: Int32)
     
     public func serialize(_ buffer: Buffer, _ boxed: Swift.Bool) {
     switch self {
@@ -18241,9 +18241,9 @@ public extension Api {
                     }
                     
                     break
-                case .theme(let flags, let id, let accessHash, let slug, let title, let document):
+                case .theme(let flags, let id, let accessHash, let slug, let title, let document, let installsCount):
                     if boxed {
-                        buffer.appendInt32(975846885)
+                        buffer.appendInt32(-136770336)
                     }
                     serializeInt32(flags, buffer: buffer, boxed: false)
                     serializeInt64(id, buffer: buffer, boxed: false)
@@ -18251,6 +18251,7 @@ public extension Api {
                     serializeString(slug, buffer: buffer, boxed: false)
                     serializeString(title, buffer: buffer, boxed: false)
                     if Int(flags) & Int(1 << 2) != 0 {document!.serialize(buffer, true)}
+                    serializeInt32(installsCount, buffer: buffer, boxed: false)
                     break
     }
     }
@@ -18259,8 +18260,8 @@ public extension Api {
         switch self {
                 case .themeDocumentNotModified:
                 return ("themeDocumentNotModified", [])
-                case .theme(let flags, let id, let accessHash, let slug, let title, let document):
-                return ("theme", [("flags", flags), ("id", id), ("accessHash", accessHash), ("slug", slug), ("title", title), ("document", document)])
+                case .theme(let flags, let id, let accessHash, let slug, let title, let document, let installsCount):
+                return ("theme", [("flags", flags), ("id", id), ("accessHash", accessHash), ("slug", slug), ("title", title), ("document", document), ("installsCount", installsCount)])
     }
     }
     
@@ -18282,14 +18283,17 @@ public extension Api {
             if Int(_1!) & Int(1 << 2) != 0 {if let signature = reader.readInt32() {
                 _6 = Api.parse(reader, signature: signature) as? Api.Document
             } }
+            var _7: Int32?
+            _7 = reader.readInt32()
             let _c1 = _1 != nil
             let _c2 = _2 != nil
             let _c3 = _3 != nil
             let _c4 = _4 != nil
             let _c5 = _5 != nil
             let _c6 = (Int(_1!) & Int(1 << 2) == 0) || _6 != nil
-            if _c1 && _c2 && _c3 && _c4 && _c5 && _c6 {
-                return Api.Theme.theme(flags: _1!, id: _2!, accessHash: _3!, slug: _4!, title: _5!, document: _6)
+            let _c7 = _7 != nil
+            if _c1 && _c2 && _c3 && _c4 && _c5 && _c6 && _c7 {
+                return Api.Theme.theme(flags: _1!, id: _2!, accessHash: _3!, slug: _4!, title: _5!, document: _6, installsCount: _7!)
             }
             else {
                 return nil
diff --git a/submodules/TelegramCore/TelegramCore/Theme.swift b/submodules/TelegramCore/TelegramCore/Theme.swift
index d785dafb65..2f184f058a 100644
--- a/submodules/TelegramCore/TelegramCore/Theme.swift
+++ b/submodules/TelegramCore/TelegramCore/Theme.swift
@@ -17,8 +17,9 @@ public final class TelegramTheme: OrderedItemListEntryContents, Equatable {
     public let file: TelegramMediaFile?
     public let isCreator: Bool
     public let isDefault: Bool
+    public let installCount: Int32
     
-    public init(id: Int64, accessHash: Int64, slug: String, title: String, file: TelegramMediaFile?, isCreator: Bool, isDefault: Bool) {
+    public init(id: Int64, accessHash: Int64, slug: String, title: String, file: TelegramMediaFile?, isCreator: Bool, isDefault: Bool, installCount: Int32) {
         self.id = id
         self.accessHash = accessHash
         self.slug = slug
@@ -26,6 +27,7 @@ public final class TelegramTheme: OrderedItemListEntryContents, Equatable {
         self.file = file
         self.isCreator = isCreator
         self.isDefault = isDefault
+        self.installCount = installCount
     }
     
     public init(decoder: PostboxDecoder) {
@@ -36,6 +38,7 @@ public final class TelegramTheme: OrderedItemListEntryContents, Equatable {
         self.file = decoder.decodeObjectForKey("file", decoder: { TelegramMediaFile(decoder: $0) }) as? TelegramMediaFile
         self.isCreator = decoder.decodeInt32ForKey("isCreator", orElse: 0) != 0
         self.isDefault = decoder.decodeInt32ForKey("isDefault", orElse: 0) != 0
+        self.installCount = decoder.decodeInt32ForKey("installCount", orElse: 0)
     }
     
     public func encode(_ encoder: PostboxEncoder) {
@@ -50,6 +53,7 @@ public final class TelegramTheme: OrderedItemListEntryContents, Equatable {
         }
         encoder.encodeInt32(self.isCreator ? 1 : 0, forKey: "isCreator")
         encoder.encodeInt32(self.isDefault ? 1 : 0, forKey: "isDefault")
+        encoder.encodeInt32(self.installCount, forKey: "installCount")
     }
     
     public static func ==(lhs: TelegramTheme, rhs: TelegramTheme) -> Bool {
@@ -74,6 +78,9 @@ public final class TelegramTheme: OrderedItemListEntryContents, Equatable {
         if lhs.isDefault != rhs.isDefault {
             return false
         }
+        if lhs.installCount != rhs.installCount {
+            return false
+        }
         return true
     }
 }
@@ -81,8 +88,8 @@ public final class TelegramTheme: OrderedItemListEntryContents, Equatable {
 extension TelegramTheme {
     convenience init?(apiTheme: Api.Theme) {
         switch apiTheme {
-            case let .theme(flags, id, accessHash, slug, title, document):
-                self.init(id: id, accessHash: accessHash, slug: slug, title: title, file: document.flatMap(telegramMediaFileFromApiDocument), isCreator: (flags & 1 << 0) != 0, isDefault: (flags & 1 << 1) != 0)
+            case let .theme(flags, id, accessHash, slug, title, document, installCount):
+                self.init(id: id, accessHash: accessHash, slug: slug, title: title, file: document.flatMap(telegramMediaFileFromApiDocument), isCreator: (flags & 1 << 0) != 0, isDefault: (flags & 1 << 1) != 0, installCount: installCount)
             default:
                 return nil
         }
diff --git a/submodules/TelegramCore/TelegramCore/Themes.swift b/submodules/TelegramCore/TelegramCore/Themes.swift
index e1e9c2d017..b590756b25 100644
--- a/submodules/TelegramCore/TelegramCore/Themes.swift
+++ b/submodules/TelegramCore/TelegramCore/Themes.swift
@@ -278,6 +278,7 @@ private func uploadTheme(account: Account, resource: MediaResource, thumbnailDat
 public enum CreateThemeError {
     case generic
     case slugInvalid
+    case slugOccupied
 }
 
 public enum CreateThemeResult {
@@ -296,6 +297,8 @@ public func createTheme(account: Account, title: String, resource: MediaResource
                     |> mapError { error in
                         if error.errorDescription == "THEME_SLUG_INVALID" {
                             return .slugInvalid
+                        } else if error.errorDescription == "THEME_SLUG_OCCUPIED" {
+                            return .slugOccupied
                         }
                         return .generic
                     }
@@ -375,6 +378,8 @@ public func updateTheme(account: Account, accountManager: AccountManager, theme:
         |> mapError { error in
             if error.errorDescription == "THEME_SLUG_INVALID" {
                 return .slugInvalid
+            } else if error.errorDescription == "THEME_SLUG_OCCUPIED" {
+                return .slugOccupied
             }
             return .generic
         }