diff --git a/pyproject.toml b/pyproject.toml
index e536ec2..1afce37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ name = "fpga-sim"  # REQUIRED, is the only field that cannot be marked as dynami
 # https://packaging.python.org/guides/single-sourcing-package-version/
 
 # dynamic = ["version"]
-version = "0.4.0"  # REQUIRED, although can be dynamic
+version = "0.5.0"  # REQUIRED, although can be dynamic
 
 # This is a one-line description or tagline of what your project does. This
 # corresponds to the "Summary" metadata field:
@@ -122,7 +122,7 @@ classifiers = [
 # https://packaging.python.org/discussions/install-requires-vs-requirements/
 dependencies = [
   "pyyaml",
-  "cocotb",
+  "cocotb>=2",
   "rtl-manifest>=0.3.1"
 ]
 
diff --git a/src/fpga_sim/fpga_sim.py b/src/fpga_sim/fpga_sim.py
index bea69c1..80bb16a 100644
--- a/src/fpga_sim/fpga_sim.py
+++ b/src/fpga_sim/fpga_sim.py
@@ -3,7 +3,7 @@ import sys
 
 import argparse
 
-from cocotb.runner import get_runner
+from cocotb_tools.runner import get_runner
 
 from rtl_manifest import rtl_manifest
 
@@ -105,7 +105,7 @@ def fpga_sim_main():
             build_args.append("--trace-fst")
 
         runner.build(
-            verilog_sources=verilog_sources,
+            sources=verilog_sources,
             includes=incdirs,
             hdl_toplevel=test["toplevel"],
             build_dir=f"{test['base_path']}/sim_build",