diff --git a/tests/pyproject.toml b/tests/pyproject.toml
index ba9bfad..490d4b1 100644
--- a/tests/pyproject.toml
+++ b/tests/pyproject.toml
@@ -11,7 +11,7 @@ dev = [
     "eth-keyfile>=0.8.1,<0.11",
     "eth-utils>=6.0.0,<6.1",
     "py-solc-x==2.0.5",
-    "pycryptodome>=3.23.0,<4",
+    "pycryptodome>=3.23.0,<5",
     "pytest>=9.0.3,<10",
     "web3==8.0.0",
 ]