diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index dceb6a6..17e8377 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -25,6 +25,17 @@ jobs:
         run: |
           ./install.sh
 
+      - name: Build Icarus
+        run: |
+          git clone https://github.com/steveicarus/iverilog.git
+          cd iverilog
+          git checkout 06077ed026b4d8498d9129a6acfb0b44d0b51f18
+          sh autoconf.sh
+          ./configure
+          make -j$(nproc)
+          sudo make install
+          iverilog -V
+
       - name: Build Verilator
         run: |
           git clone https://github.com/verilator/verilator -b v5.024
diff --git a/verification/cocotb/noxfile.py b/verification/cocotb/noxfile.py
index ded9245..e945dfd 100644
--- a/verification/cocotb/noxfile.py
+++ b/verification/cocotb/noxfile.py
@@ -242,24 +242,23 @@ def ctrl_bus_monitor_verify(session, test_group, test_name, coverage):
     verify_block(session, test_group, test_name, coverage)
 
 
-# TODO: Install iverilog in CI and reenable
-# @nox.session(tags=["tests", "ahb", "axi"])
-# @nox.parametrize("test_group", ["i3c_phy_io"])
-# @nox.parametrize(
-#     "simulator",
-#     [
-#         "icarus",
-#     ],
-# )
-# @nox.parametrize(
-#     "test_name",
-#     [
-#         "test_drivers",
-#     ],
-# )
-# @nox.parametrize("coverage", coverage_types)
-# def i3c_phy_io_verify(session, test_group, test_name, coverage, simulator):
-#     verify_block(session, test_group, test_name, coverage, simulator)
+@nox.session(tags=["tests", "ahb", "axi"])
+@nox.parametrize("test_group", ["i3c_phy_io"])
+@nox.parametrize(
+    "simulator",
+    [
+        "icarus",
+    ],
+)
+@nox.parametrize(
+    "test_name",
+    [
+        "test_drivers",
+    ],
+)
+@nox.parametrize("coverage", coverage_types)
+def i3c_phy_io_verify(session, test_group, test_name, coverage, simulator):
+    verify_block(session, test_group, test_name, coverage, simulator)
 
 
 @nox.session(reuse_venv=True)