diff --git a/ci/testnet-manager.sh b/ci/testnet-manager.sh
index a2597fa81..f8c179793 100755
--- a/ci/testnet-manager.sh
+++ b/ci/testnet-manager.sh
@@ -536,7 +536,7 @@ deploy() {
         ${maybeInternalNodesStakeLamports} \
         ${maybeInternalNodesLamports} \
         ${maybeExternalAccountsFile} \
-        --target-lamports-per-signature 1 \
+        --target-lamports-per-signature 0 \
         --slots-per-epoch 4096 \
         ${maybeAdditionalDisk}
     )