diff --git a/test_libs/pyspec/setup.py b/test_libs/pyspec/setup.py
index 1a131a417..e99b911ee 100644
--- a/test_libs/pyspec/setup.py
+++ b/test_libs/pyspec/setup.py
@@ -9,5 +9,6 @@ setup(
         "eth-typing>=2.1.0,<3.0.0",
         "pycryptodome==3.7.3",
         "py_ecc>=1.6.0",
+        "typing_inspect==0.4.0"
     ]
 )