diff --git a/.gitmodules b/.gitmodules
index c7b202e09..ad822b27d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -24,7 +24,7 @@
 	url = https://github.com/desktop-app/lib_rpl.git
 [submodule "Telegram/lib_base"]
 	path = Telegram/lib_base
-	url = https://github.com/kotatogram/lib_base.git
+	url = https://github.com/desktop-app/lib_base.git
 [submodule "Telegram/codegen"]
 	path = Telegram/codegen
 	url = https://github.com/desktop-app/codegen.git
diff --git a/Telegram/SourceFiles/boxes/confirm_phone_box.cpp b/Telegram/SourceFiles/boxes/confirm_phone_box.cpp
index bb97b402a..a9fc52cb7 100644
--- a/Telegram/SourceFiles/boxes/confirm_phone_box.cpp
+++ b/Telegram/SourceFiles/boxes/confirm_phone_box.cpp
@@ -41,7 +41,7 @@ I'm trying to use my mobile phone number: ") + phone + qsl("\n\
 But Telegram says it's banned. Please help.\n\
 \n\
 App version: ") + version + qsl("\n\
-OS version: ") + Platform::SystemVersionPretty() + qsl("\n\
+OS version: ") + QSysInfo::prettyProductName() + qsl("\n\
 Locale: ") + Platform::SystemLanguage();
 
 	const auto url = "mailto:?to="
diff --git a/Telegram/SourceFiles/main/main_account.cpp b/Telegram/SourceFiles/main/main_account.cpp
index f73e4b2b5..5c493d933 100644
--- a/Telegram/SourceFiles/main/main_account.cpp
+++ b/Telegram/SourceFiles/main/main_account.cpp
@@ -426,8 +426,8 @@ void Account::startMtp(std::unique_ptr<MTP::Config> config) {
 
 	auto fields = base::take(_mtpFields);
 	fields.config = std::move(config);
-	fields.deviceModel = Platform::DeviceModelPretty();
-	fields.systemVersion = Platform::SystemVersionPretty();
+	fields.deviceModel = QSysInfo::machineHostName();
+	fields.systemVersion = QSysInfo::prettyProductName();
 	_mtp = std::make_unique<MTP::Instance>(
 		MTP::Instance::Mode::Normal,
 		std::move(fields));
@@ -572,8 +572,8 @@ void Account::destroyMtpKeys(MTP::AuthKeysList &&keys) {
 	destroyFields.mainDcId = MTP::Instance::Fields::kNoneMainDc;
 	destroyFields.config = std::make_unique<MTP::Config>(_mtp->config());
 	destroyFields.keys = std::move(keys);
-	destroyFields.deviceModel = Platform::DeviceModelPretty();
-	destroyFields.systemVersion = Platform::SystemVersionPretty();
+	destroyFields.deviceModel = QSysInfo::machineHostName();
+	destroyFields.systemVersion = QSysInfo::prettyProductName();
 	_mtpForKeysDestroy = std::make_unique<MTP::Instance>(
 		MTP::Instance::Mode::KeysDestroyer,
 		std::move(destroyFields));
diff --git a/Telegram/lib_base b/Telegram/lib_base
index 085d51119..e5a3b470d 160000
--- a/Telegram/lib_base
+++ b/Telegram/lib_base
@@ -1 +1 @@
-Subproject commit 085d51119970b1d1a68ae53b014bf378e23b9be8
+Subproject commit e5a3b470d6524cdeb3e2deb92f04b0d290ceec24