diff --git a/build/templates/backend/config/bitcoin.conf b/build/templates/backend/config/bitcoin.conf
index 23ca52bc..c6f94c73 100644
--- a/build/templates/backend/config/bitcoin.conf
+++ b/build/templates/backend/config/bitcoin.conf
@@ -12,6 +12,8 @@ zmqpubhashblock={{template "IPC.MessageQueueBindingTemplate" .}}
 rpcworkqueue=1100
 maxmempool=4096
 mempoolexpiry=8760
+mempoolfullrbf=1
+
 dbcache=1000
 
 {{- if .Backend.AdditionalParams}}
diff --git a/configs/coins/bcash_testnet.json b/configs/coins/bcash_testnet.json
index d217cdb4..1591d682 100644
--- a/configs/coins/bcash_testnet.json
+++ b/configs/coins/bcash_testnet.json
@@ -1,66 +1,64 @@
 {
-  "coin": {
-    "name": "Bcash Testnet",
-    "shortcut": "TBCH",
-    "label": "Bitcoin Cash Testnet",
-    "alias": "bcash_testnet"
-  },
-  "ports": {
-    "backend_rpc": 18031,
-    "backend_message_queue": 48331,
-    "blockbook_internal": 19031,
-    "blockbook_public": 19131
-  },
-  "ipc": {
-    "rpc_url_template": "http://127.0.0.1:{{.Ports.BackendRPC}}",
-    "rpc_user": "rpc",
-    "rpc_pass": "rpc",
-    "rpc_timeout": 25,
-    "message_queue_binding_template": "tcp://127.0.0.1:{{.Ports.BackendMessageQueue}}"
-  },
-  "backend": {
-    "package_name": "backend-bcash-testnet",
-    "package_revision": "satoshilabs-1",
-    "system_user": "bcash",
-    "version": "26.1.0",
-    "binary_url": "https://github.com/bitcoin-cash-node/bitcoin-cash-node/releases/download/v26.1.0/bitcoin-cash-node-26.1.0-x86_64-linux-gnu.tar.gz",
-    "verification_type": "sha256",
-    "verification_source": "68cb24d57898d5b47a1162a9683d0b0e36c6701b5a16b93edc94bbd82113c04b",
-    "extract_command": "tar -C backend --strip 1 -xf",
-    "exclude_files": [
-      "bin/bitcoin-qt"
-    ],
-    "exec_command_template": "{{.Env.BackendInstallPath}}/{{.Coin.Alias}}/bin/bitcoind -datadir={{.Env.BackendDataPath}}/{{.Coin.Alias}}/backend -conf={{.Env.BackendInstallPath}}/{{.Coin.Alias}}/{{.Coin.Alias}}.conf -pid=/run/{{.Coin.Alias}}/{{.Coin.Alias}}.pid",
-    "logrotate_files_template": "{{.Env.BackendDataPath}}/{{.Coin.Alias}}/backend/testnet3/*.log",
-    "postinst_script_template": "",
-    "service_type": "forking",
-    "service_additional_params_template": "",
-    "protect_memory": true,
-    "mainnet": false,
-    "server_config_file": "bitcoin.conf",
-    "client_config_file": "bitcoin_client.conf"
-  },
-  "blockbook": {
-    "package_name": "blockbook-bcash-testnet",
-    "system_user": "blockbook-bcash",
-    "internal_binding_template": ":{{.Ports.BlockbookInternal}}",
-    "public_binding_template": ":{{.Ports.BlockbookPublic}}",
-    "explorer_url": "",
-    "additional_params": "",
-    "block_chain": {
-      "parse": true,
-      "subversion": "/Bitcoin ABC Cash Node:22.1.0/",
-      "address_format": "cashaddr",
-      "mempool_workers": 8,
-      "mempool_sub_workers": 2,
-      "block_addresses_to_keep": 300,
-      "xpub_magic": 70617039,
-      "slip44": 1,
-      "additional_params": {}
+    "coin": {
+        "name": "Bcash Testnet",
+        "shortcut": "TBCH",
+        "label": "Bitcoin Cash Testnet",
+        "alias": "bcash_testnet"
+    },
+    "ports": {
+        "backend_rpc": 18031,
+        "backend_message_queue": 48331,
+        "blockbook_internal": 19031,
+        "blockbook_public": 19131
+    },
+    "ipc": {
+        "rpc_url_template": "http://127.0.0.1:{{.Ports.BackendRPC}}",
+        "rpc_user": "rpc",
+        "rpc_pass": "rpc",
+        "rpc_timeout": 25,
+        "message_queue_binding_template": "tcp://127.0.0.1:{{.Ports.BackendMessageQueue}}"
+    },
+    "backend": {
+        "package_name": "backend-bcash-testnet",
+        "package_revision": "satoshilabs-1",
+        "system_user": "bcash",
+        "version": "26.1.0",
+        "binary_url": "https://github.com/bitcoin-cash-node/bitcoin-cash-node/releases/download/v26.1.0/bitcoin-cash-node-26.1.0-x86_64-linux-gnu.tar.gz",
+        "verification_type": "sha256",
+        "verification_source": "68cb24d57898d5b47a1162a9683d0b0e36c6701b5a16b93edc94bbd82113c04b",
+        "extract_command": "tar -C backend --strip 1 -xf",
+        "exclude_files": ["bin/bitcoin-qt"],
+        "exec_command_template": "{{.Env.BackendInstallPath}}/{{.Coin.Alias}}/bin/bitcoind -datadir={{.Env.BackendDataPath}}/{{.Coin.Alias}}/backend -conf={{.Env.BackendInstallPath}}/{{.Coin.Alias}}/{{.Coin.Alias}}.conf -pid=/run/{{.Coin.Alias}}/{{.Coin.Alias}}.pid",
+        "logrotate_files_template": "{{.Env.BackendDataPath}}/{{.Coin.Alias}}/backend/testnet3/*.log",
+        "postinst_script_template": "",
+        "service_type": "forking",
+        "service_additional_params_template": "",
+        "protect_memory": true,
+        "mainnet": false,
+        "server_config_file": "bcash.conf",
+        "client_config_file": "bitcoin_client.conf"
+    },
+    "blockbook": {
+        "package_name": "blockbook-bcash-testnet",
+        "system_user": "blockbook-bcash",
+        "internal_binding_template": ":{{.Ports.BlockbookInternal}}",
+        "public_binding_template": ":{{.Ports.BlockbookPublic}}",
+        "explorer_url": "",
+        "additional_params": "",
+        "block_chain": {
+            "parse": true,
+            "subversion": "/Bitcoin ABC Cash Node:22.1.0/",
+            "address_format": "cashaddr",
+            "mempool_workers": 8,
+            "mempool_sub_workers": 2,
+            "block_addresses_to_keep": 300,
+            "xpub_magic": 70617039,
+            "slip44": 1,
+            "additional_params": {}
+        }
+    },
+    "meta": {
+        "package_maintainer": "IT",
+        "package_maintainer_email": "it@satoshilabs.com"
     }
-  },
-  "meta": {
-    "package_maintainer": "IT",
-    "package_maintainer_email": "it@satoshilabs.com"
-  }
 }