diff --git a/stapler/params.py b/stapler/params.py
index a44c31d..df29092 100644
--- a/stapler/params.py
+++ b/stapler/params.py
@@ -40,7 +40,7 @@ def __get_env_str(var: str, default: str) -> str:
 
 def __get_env_int(var: str, default: int) -> int:
     value = __get_env_str(var, str(default))
-    if value.isnumeric():
+    if value.isdecimal():
         return int(value)
     return default