diff --git a/check-null-licenses b/check-null-licenses
index db2e0d3..bf3d7d4 100755
--- a/check-null-licenses
+++ b/check-null-licenses
@@ -6,7 +6,10 @@ from argparse import ArgumentParser, FileType, RawDescriptionHelpFormatter
 from pathlib import Path
 from sys import exit, stderr
 
-import toml
+try:
+    import tomllib
+except ImportError:
+    import tomli as tomllib
 
 
 def main():
@@ -124,7 +127,7 @@ considered an error, and the program returns with nonzero status.
     parser.add_argument(
         "-x",
         "--exceptions",
-        type=FileType("r"),
+        type=FileType("rb"),
         help="Manually audited package versions file",
     )
     parser.add_argument(
@@ -149,7 +152,7 @@ considered an error, and the program returns with nonzero status.
     else:
         with args.exceptions as xfile:
             xname = getattr(xfile, "name", "<exceptions>")
-            args.exceptions = toml.load(args.exceptions)
+            args.exceptions = tomllib.load(args.exceptions)
         if not isinstance(args.exceptions, dict):
             parser.error(f"Invalid format in {xname}: not an object")
         for tablename, table in args.exceptions.items():
diff --git a/llhttp.spec b/llhttp.spec
index 17950fc..0aeb872 100644
--- a/llhttp.spec
+++ b/llhttp.spec
@@ -71,7 +71,7 @@ BuildRequires:  gcc-c++
 
 # For check-null-licenses
 BuildRequires:  python3-devel
-BuildRequires:  python3dist(toml)
+BuildRequires:  (python3dist(tomli) if python3 < 3.11)
 
 %description
 This project is a port of http_parser to TypeScript. llparse is used to