diff --git a/install.py b/install.py
index e7242cd..4718666 100644
--- a/install.py
+++ b/install.py
@@ -8,12 +8,17 @@ from importlib.metadata import version  # python >= 3.8
 from packaging.version import parse
 
 import_name = {"py-cpuinfo": "cpuinfo", "protobuf": "google.protobuf"}
+custom_requirements = {"ultralytics": "ultralytics>=8.3.0,!=8.3.41,!=8.3.42"}
+excluded_versions = {"ultralytics": ("8.3.41", "8.3.42")}
 
 
 def is_installed(
-    package: str, min_version: str | None = None, max_version: str | None = None
+    package: str,
+    min_version: str | None = None,
+    max_version: str | None = None,
 ):
     name = import_name.get(package, package)
+    excluded = excluded_versions.get(package, ())
     try:
         spec = importlib.util.find_spec(name)
     except ModuleNotFoundError:
@@ -32,7 +37,10 @@ def is_installed(
 
     try:
         pkg_version = version(package)
-        return parse(min_version) <= parse(pkg_version) <= parse(max_version)
+        return (
+            parse(min_version) <= parse(pkg_version) <= parse(max_version)
+            and pkg_version not in excluded
+        )
     except Exception:
         return False
 
@@ -44,7 +52,7 @@ def run_pip(*args):
 def install():
     deps = [
         # requirements
-        ("ultralytics", "8.2.0", None),
+        ("ultralytics", "8.3.0", None),
         ("mediapipe", "0.10.13", "0.10.15"),
         ("rich", "13.0.0", None),
     ]
@@ -52,7 +60,9 @@ def install():
     pkgs = []
     for pkg, low, high in deps:
         if not is_installed(pkg, low, high):
-            if low and high:
+            if pkg in custom_requirements:
+                cmd = custom_requirements[pkg]
+            elif low and high:
                 cmd = f"{pkg}>={low},<={high}"
             elif low:
                 cmd = f"{pkg}>={low}"