diff --git a/safe_relay_service/relay/services/transaction_service.py b/safe_relay_service/relay/services/transaction_service.py
index 4a0f6b68..fb9cdd90 100644
--- a/safe_relay_service/relay/services/transaction_service.py
+++ b/safe_relay_service/relay/services/transaction_service.py
@@ -398,7 +398,7 @@ def estimate_circles_signup_tx(
         """
         # Tx data from Circles Hub contract `signup` method
         data = "0xb7bc0f73"
-        return 500000000000000000
+        return 50000000000000000
 
     def estimate_circles_organization_signup_tx(
         self, safe_address: str, gas_token: str = NULL_ADDRESS
@@ -410,7 +410,7 @@ def estimate_circles_organization_signup_tx(
         """
         # Tx data from Circles Hub contract organizationSignup method
         data = "0x3fbd653c"
-        return 500000000000000000
+        return 50000000000000000
         # return self.estimate_circles_hub_method(data, safe_address, gas_token)
 
     def create_multisig_tx(