--- a/src/options/CMakeLists.txt	2022-11-11 23:12:59.874087267 +0100
+++ b/src/options/CMakeLists.txt	2022-11-11 23:13:11.974894643 +0100
@@ -1,17 +1,3 @@
-# Check if the toml Python module is installed.
-execute_process(
-  COMMAND
-  ${PYTHON_EXECUTABLE} -c "import toml"
-  RESULT_VARIABLE
-    RET_TOML
-  ERROR_QUIET
-)
-
-if(RET_TOML)
-    message(FATAL_ERROR
-      "Could not find Python module toml. Install via `pip install toml'.")
-endif()
-
 libcvc4_add_sources(
   base_handlers.h
   decision_weight.h
--- a/src/options/mkoptions.py	2022-11-11 23:16:22.577858012 +0100
+++ b/src/options/mkoptions.py	2022-11-11 23:23:12.014320054 +0100
@@ -46,7 +46,11 @@
 import re
 import sys
 import textwrap
-import toml
+
+if sys.version_info >= (3, 11):
+    import tomllib
+else:
+    import tomli as tomllib
 
 ### Allowed attributes for module/option/alias
 
@@ -1309,7 +1313,9 @@
     # Parse files, check attributes and create module/option objects
     modules = []
     for filename in filenames:
-        module = parse_module(filename, toml.load(filename))
+        with open(filename, "rb") as f:
+            d1 = tomllib.load(f)
+        module = parse_module(filename, d1)
 
         # Check if long options are valid and unique.  First populate
         # g_long_cache with option.long and --no- alternatives if