diff --git a/local/core/etc/config-settings/p22/testnet.json b/local/core/etc/config-settings/p22/testnet.json
index 1e1604f9..d15274b6 100644
--- a/local/core/etc/config-settings/p22/testnet.json
+++ b/local/core/etc/config-settings/p22/testnet.json
@@ -5,7 +5,7 @@
     },
     {
       "contract_compute_v0": {
-        "ledger_max_instructions": 100000000,
+        "ledger_max_instructions": 500000000,
         "tx_max_instructions": 100000000,
         "fee_rate_per_instructions_increment": 25,
         "tx_memory_limit": 41943040
@@ -428,4 +428,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}