diff --git a/backend/src/__fixtures__/mempool-config.template.json b/backend/src/__fixtures__/mempool-config.template.json
index 62b2e5f45..600c5e430 100644
--- a/backend/src/__fixtures__/mempool-config.template.json
+++ b/backend/src/__fixtures__/mempool-config.template.json
@@ -30,7 +30,9 @@
     "RUST_GBT": false,
     "CPFP_INDEXING": true,
     "MAX_BLOCKS_BULK_QUERY": 999,
-    "DISK_CACHE_BLOCK_INTERVAL": 999
+    "DISK_CACHE_BLOCK_INTERVAL": 999,
+    "MAX_PUSH_TX_SIZE_WEIGHT": "__MEMPOOL_MAX_PUSH_TX_SIZE_WEIGHT__",
+    "ALLOW_UNREACHABLE": "__MEMPOOL_ALLOW_UNREACHABLE__"
   },
   "CORE_RPC": {
     "HOST": "__CORE_RPC_HOST__",
@@ -120,4 +122,4 @@
   "CLIGHTNING": {
     "SOCKET": "__CLIGHTNING_SOCKET__"
   }
-}
\ No newline at end of file
+}
diff --git a/backend/src/__tests__/config.test.ts b/backend/src/__tests__/config.test.ts
index 937011ba2..fdd8a02de 100644
--- a/backend/src/__tests__/config.test.ts
+++ b/backend/src/__tests__/config.test.ts
@@ -44,6 +44,8 @@ describe('Mempool Backend Config', () => {
         CPFP_INDEXING: false,
         MAX_BLOCKS_BULK_QUERY: 0,
         DISK_CACHE_BLOCK_INTERVAL: 6,
+        MAX_PUSH_TX_SIZE_WEIGHT: 400000,
+        ALLOW_UNREACHABLE: true,
       });
 
       expect(config.ELECTRUM).toStrictEqual({ HOST: '127.0.0.1', PORT: 3306, TLS_ENABLED: true });