diff --git a/.gitmodules b/.gitmodules
index 443cf1c76d..5980338463 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,7 +7,7 @@
 url=https://github.com/bazelbuild/rules_apple.git
 [submodule "build-system/bazel-rules/rules_swift"]
 	path = build-system/bazel-rules/rules_swift
-url=https://github.com/ali-fareed/rules_swift.git
+url=https://github.com/bazelbuild/rules_swift.git
 [submodule "build-system/bazel-rules/apple_support"]
 	path = build-system/bazel-rules/apple_support
 	url = https://github.com/bazelbuild/apple_support.git
@@ -16,7 +16,7 @@ url=https://github.com/ali-fareed/rules_swift.git
 	url = https://github.com/telegramdesktop/libtgvoip.git
 [submodule "build-system/tulsi"]
 	path = build-system/tulsi
-url=https://github.com/ali-fareed/tulsi.git
+url=https://github.com/bazelbuild/tulsi.git
 [submodule "submodules/TgVoipWebrtc/tgcalls"]
 	path = submodules/TgVoipWebrtc/tgcalls
 url=../tgcalls.git
diff --git a/README.md b/README.md
index c8053c98c7..82fe31fe1f 100644
--- a/README.md
+++ b/README.md
@@ -20,23 +20,7 @@ There are several things we require from **all developers** for the moment.
 git clone --recursive -j8 https://github.com/TelegramMessenger/Telegram-iOS.git
 ```
 
-3. Download Bazel 4.0.0
-
-```
-mkdir -p $HOME/bazel-dist
-cd $HOME/bazel-dist
-curl -O -L https://github.com/bazelbuild/bazel/releases/download/4.0.0/bazel-4.0.0-darwin-x86_64
-mv bazel-* bazel
-```
-
-Verify that it's working
-
-```
-chmod +x bazel
-./bazel --version
-```
-
-4. Adjust configuration parameters
+3. Adjust configuration parameters
 
 ```
 mkdir -p $HOME/telegram-configuration
@@ -46,7 +30,7 @@ cp -R build-system/example-configuration/* $HOME/telegram-configuration/
 - Modify the values in `variables.bzl`
 - Replace the provisioning profiles in `provisioning` with valid files
 
-5. (Optional) Create a build cache directory to speed up rebuilds
+4. (Optional) Create a build cache directory to speed up rebuilds
 
 ```
 mkdir -p "$HOME/telegram-bazel-cache"
@@ -56,7 +40,6 @@ mkdir -p "$HOME/telegram-bazel-cache"
 
 ```
 python3 build-system/Make/Make.py \
-    --bazel="$HOME/bazel-dist/bazel" \
     --cacheDir="$HOME/telegram-bazel-cache" \
     build \
     --configurationPath="$HOME/telegram-configuration" \
@@ -68,7 +51,6 @@ python3 build-system/Make/Make.py \
 
 ```
 python3 build-system/Make/Make.py \
-    --bazel="$HOME/bazel-dist/bazel" \
     --cacheDir="$HOME/telegram-bazel-cache" \
     generateProject \
     --configurationPath="$HOME/telegram-configuration" \
@@ -78,7 +60,6 @@ python3 build-system/Make/Make.py \
 It is possible to generate a project that does not require any codesigning certificates to be installed: add `--disableProvisioningProfiles` flag:
 ```
 python3 build-system/Make/Make.py \
-    --bazel="$HOME/bazel-dist/bazel" \
     --cacheDir="$HOME/telegram-bazel-cache" \
     generateProject \
     --configurationPath="$HOME/telegram-configuration" \
@@ -100,6 +81,8 @@ python3 build-system/Make/Make.py build --help
 python3 build-system/Make/Make.py generateProject --help
 ```
 
+Bazel is automatically downloaded when running Make.py for the first time. If you wish to use your own build of Bazel, pass `--bazel=path-to-bazel`. If your Bazel version differs from that in `versions.json`, you may use `--overrideBazelVersion` to skip the version check.
+
 Each release is built using specific Xcode and Bazel versions (see `versions.json`). The helper script checks the versions of installed software and reports an error if they don't match the ones specified in `versions.json`. There are flags that allow to bypass these checks:
 
 ```
diff --git a/build-system/Make/BazelLocation.py b/build-system/Make/BazelLocation.py
new file mode 100644
index 0000000000..73651ed182
--- /dev/null
+++ b/build-system/Make/BazelLocation.py
@@ -0,0 +1,32 @@
+import os
+import stat
+import sys
+
+from BuildEnvironment import is_apple_silicon, resolve_executable, call_executable, BuildEnvironmentVersions
+
+def locate_bazel(base_path):
+    versions = BuildEnvironmentVersions(base_path=os.getcwd())
+    if is_apple_silicon():
+        arch = 'darwin-arm64'
+    else:
+        arch = 'x86_64'
+    bazel_name = 'bazel-{version}-{arch}'.format(version=versions.bazel_version, arch=arch)
+    bazel_path = '{}/build-input/{}'.format(base_path, bazel_name)
+
+    if not os.path.isfile(bazel_path):
+        call_executable([
+            'curl',
+            '-L',
+            'https://github.com/bazelbuild/bazel/releases/download/{version}/{name}'.format(
+                version=versions.bazel_version,
+                name=bazel_name
+            ),
+            '--output',
+            bazel_path
+        ])
+
+    if not os.access(bazel_path, os.X_OK):
+        st = os.stat(bazel_path)
+        os.chmod(bazel_path, st.st_mode | stat.S_IEXEC)
+
+    return bazel_path
diff --git a/build-system/Make/BuildEnvironment.py b/build-system/Make/BuildEnvironment.py
index 815ceb4059..4b91ab7c99 100644
--- a/build-system/Make/BuildEnvironment.py
+++ b/build-system/Make/BuildEnvironment.py
@@ -93,18 +93,12 @@ def get_xcode_version():
     exit(1)
 
 
-class BuildEnvironment:
+class BuildEnvironmentVersions:
     def __init__(
             self,
-            base_path,
-            bazel_path,
-            override_bazel_version,
-            override_xcode_version
+            base_path
             ):
-        self.base_path = os.path.expanduser(base_path)
-        self.bazel_path = os.path.expanduser(bazel_path)
-
-        configuration_path = os.path.join(self.base_path, 'versions.json')
+        configuration_path = os.path.join(base_path, 'versions.json')
         with open(configuration_path) as file:
             configuration_dict = json.load(file)
             if configuration_dict['app'] is None:
@@ -120,24 +114,41 @@ class BuildEnvironment:
             else:
                 self.xcode_version = configuration_dict['xcode']
 
+class BuildEnvironment:
+    def __init__(
+            self,
+            base_path,
+            bazel_path,
+            override_bazel_version,
+            override_xcode_version
+            ):
+        self.base_path = os.path.expanduser(base_path)
+        self.bazel_path = os.path.expanduser(bazel_path)
+
+        versions = BuildEnvironmentVersions(base_path=self.base_path)
+
         actual_bazel_version = get_bazel_version(self.bazel_path)
-        if actual_bazel_version != self.bazel_version:
+        if actual_bazel_version != versions.bazel_version:
             if override_bazel_version:
                 print('Overriding the required bazel version {} with {} as reported by {}'.format(
-                    self.bazel_version, actual_bazel_version, self.bazel_path))
+                    versions.bazel_version, actual_bazel_version, self.bazel_path))
                 self.bazel_version = actual_bazel_version
             else:
                 print('Required bazel version is "{}", but "{}"" is reported by {}'.format(
-                    self.bazel_version, actual_bazel_version, self.bazel_path))
+                    versions.bazel_version, actual_bazel_version, self.bazel_path))
                 exit(1)
 
         actual_xcode_version = get_xcode_version()
-        if actual_xcode_version != self.xcode_version:
+        if actual_xcode_version != versions.xcode_version:
             if override_xcode_version:
                 print('Overriding the required Xcode version {} with {} as reported by \'xcode-select -p\''.format(
-                    self.xcode_version, actual_xcode_version, self.bazel_path))
-                self.xcode_version = actual_xcode_version
+                    versions.xcode_version, actual_xcode_version, self.bazel_path))
+                versions.xcode_version = actual_xcode_version
             else:
                 print('Required Xcode version is {}, but {} is reported by \'xcode-select -p\''.format(
-                    self.xcode_version, actual_xcode_version, self.bazel_path))
+                    versions.xcode_version, actual_xcode_version, self.bazel_path))
                 exit(1)
+
+        self.app_version = versions.app_version
+        self.xcode_version = versions.xcode_version
+        self.bazel_version = versions.bazel_version
diff --git a/build-system/Make/Make.py b/build-system/Make/Make.py
index 9cf3b535f7..c04e67db2c 100644
--- a/build-system/Make/Make.py
+++ b/build-system/Make/Make.py
@@ -7,15 +7,15 @@ import sys
 import tempfile
 import subprocess
 
-from BuildEnvironment import is_apple_silicon, resolve_executable, call_executable, BuildEnvironment
+from BuildEnvironment import resolve_executable, call_executable, BuildEnvironment
 from ProjectGeneration import generate
-
+from BazelLocation import locate_bazel
 
 class BazelCommandLine:
-    def __init__(self, bazel_path, override_bazel_version, override_xcode_version, bazel_user_root):
+    def __init__(self, bazel, override_bazel_version, override_xcode_version, bazel_user_root):
         self.build_environment = BuildEnvironment(
             base_path=os.getcwd(),
-            bazel_path=bazel_path,
+            bazel_path=bazel,
             override_bazel_version=override_bazel_version,
             override_xcode_version=override_xcode_version
         )
@@ -27,6 +27,9 @@ class BazelCommandLine:
         self.configuration_args = None
         self.configuration_path = None
         self.split_submodules = False
+        self.custom_target = None
+        self.continue_on_error = False
+        self.enable_sandbox = False
 
         self.common_args = [
             # https://docs.bazel.build/versions/master/command-line-reference.html
@@ -314,9 +317,9 @@ class BazelCommandLine:
         call_executable(combined_arguments)
 
 
-def clean(arguments):
+def clean(bazel, arguments):
     bazel_command_line = BazelCommandLine(
-        bazel_path=arguments.bazel,
+        bazel=bazel,
         override_bazel_version=arguments.overrideBazelVersion,
         override_xcode_version=arguments.overrideXcodeVersion,
         bazel_user_root=arguments.bazelUserRoot
@@ -355,9 +358,9 @@ def resolve_configuration(bazel_command_line: BazelCommandLine, arguments):
         raise Exception('Neither configurationPath nor configurationGenerator are set')
 
 
-def generate_project(arguments):        
+def generate_project(bazel, arguments):
     bazel_command_line = BazelCommandLine(
-        bazel_path=arguments.bazel,
+        bazel=bazel,
         override_bazel_version=arguments.overrideBazelVersion,
         override_xcode_version=arguments.overrideXcodeVersion,
         bazel_user_root=arguments.bazelUserRoot
@@ -401,9 +404,9 @@ def generate_project(arguments):
     )
 
 
-def build(arguments):
+def build(bazel, arguments):
     bazel_command_line = BazelCommandLine(
-        bazel_path=arguments.bazel,
+        bazel=bazel,
         override_bazel_version=arguments.overrideBazelVersion,
         override_xcode_version=arguments.overrideXcodeVersion,
         bazel_user_root=arguments.bazelUserRoot
@@ -463,7 +466,7 @@ if __name__ == '__main__':
 
     parser.add_argument(
         '--bazel',
-        required=True,
+        required=False,
         help='Use custom bazel binary',
         metavar='path'
     )
@@ -596,7 +599,8 @@ if __name__ == '__main__':
         '--disableParallelSwiftmoduleGeneration',
         action='store_true',
         default=False,
-        help='Generate .swiftmodule files in parallel to building modules, can speed up compilation on multi-core systems.'
+        help='Generate .swiftmodule files in parallel to building modules, can speed up compilation on multi-core '
+             'systems. '
     )
     buildParser.add_argument(
         '--target',
@@ -629,13 +633,19 @@ if __name__ == '__main__':
     if args.commandName is None:
         exit(0)
 
+    bazel_path = None
+    if args.bazel is None:
+        bazel_path = locate_bazel(base_path=os.getcwd())
+    else:
+        bazel_path = args.bazel
+
     try:
         if args.commandName == 'clean':
-            clean(arguments=args)
+            clean(bazel=bazel_path, arguments=args)
         elif args.commandName == 'generateProject':
-            generate_project(arguments=args)
+            generate_project(bazel=bazel_path, arguments=args)
         elif args.commandName == 'build':
-            build(arguments=args)
+            build(bazel=bazel_path, arguments=args)
         else:
             raise Exception('Unknown command')
     except KeyboardInterrupt:
diff --git a/build-system/bazel-rules/apple_support b/build-system/bazel-rules/apple_support
index c1f83903e8..a448644dce 160000
--- a/build-system/bazel-rules/apple_support
+++ b/build-system/bazel-rules/apple_support
@@ -1 +1 @@
-Subproject commit c1f83903e864d753477e51d66d3ada6c2c6d096f
+Subproject commit a448644dce247e59268864fd66b6578195412b59
diff --git a/build-system/bazel-rules/rules_apple b/build-system/bazel-rules/rules_apple
index fcbfcfad2d..4ebd7cc45e 160000
--- a/build-system/bazel-rules/rules_apple
+++ b/build-system/bazel-rules/rules_apple
@@ -1 +1 @@
-Subproject commit fcbfcfad2d633b6c8be85954975db88bee3fa26c
+Subproject commit 4ebd7cc45edfe6c525c1553a0f5294895653c9df
diff --git a/build-system/bazel-rules/rules_swift b/build-system/bazel-rules/rules_swift
index 03c89782e9..e850484071 160000
--- a/build-system/bazel-rules/rules_swift
+++ b/build-system/bazel-rules/rules_swift
@@ -1 +1 @@
-Subproject commit 03c89782e9a15d467c7e036ee36f9adb6bdda910
+Subproject commit e850484071d2b8dc41685a62d3567c312173f3c3
diff --git a/build-system/tulsi b/build-system/tulsi
index ec7dd9ddf4..4eb4edc06e 160000
--- a/build-system/tulsi
+++ b/build-system/tulsi
@@ -1 +1 @@
-Subproject commit ec7dd9ddf4b73dedb02df827b7ab3b2cbb1f2ac0
+Subproject commit 4eb4edc06eef85d0a4593f36e8fe34e33f718018
diff --git a/versions.json b/versions.json
index 40cbe0153a..44649d5106 100644
--- a/versions.json
+++ b/versions.json
@@ -1,5 +1,5 @@
 {
     "app": "8.4.1",
-    "bazel": "4.0.0",
-    "xcode": "13.1"
+    "bazel": "5.0.0",
+    "xcode": "13.2.1"
 }