diff --git a/pyproject.toml b/pyproject.toml
index 98435f90fb352cf19e64f7ab88ac35aea539b373..a0c41e45e7179b1c37a5ce15ba8e210a55d945d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ mnemonic = "^0.19"
 yoyo-migrations = "^7.3.1"
 PyQt5 = "^5.15.6"
 PyYAML = "^6.0"
-substrate-interface = "^1.3.4"
+substrate-interface = "^1.4.2"
 python-sql = "^1.4.0"
 
 [tool.poetry.dev-dependencies]