diff --git a/tox.ini b/tox.ini
index 7ed97b5..c8f64d9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,8 +10,8 @@ deps =
     pytest == 8.3.4
     pytest-xdist == 3.6.1
     pytest-split == 0.10.0
-    cocotb == 1.9.2
-    cocotb-bus == 0.2.1
+    cocotb == 2.0.1
+    cocotb-bus == 0.3.0
     cocotb-test == 0.2.6
     cocotbext-axi == 0.1.28
     #git+http://github.com/alexforencich/cocotbext-axi.git#egg=cocotbext-axi