diff --git a/config/tarmac.json b/config/tarmac.json
index 95115d7..b216439 100644
--- a/config/tarmac.json
+++ b/config/tarmac.json
@@ -4,16 +4,20 @@
             "name": "airport-lookup",
             "functions": {
                 "init": {
-                    "filepath": "/functions/data/init.wasm"
+                    "filepath": "/functions/data/init.wasm",
+                    "pool_size": 1
                 },
                 "load": {
-                    "filepath": "/functions/data/load.wasm"
+                    "filepath": "/functions/data/load.wasm",
+                    "pool_size": 1
                 },
                 "fetch": {
-                    "filepath": "/functions/data/fetch.wasm"
+                    "filepath": "/functions/data/fetch.wasm",
+                    "pool_size": 1
                 },
                 "handler": {
-                    "filepath": "/functions/handlers/lookup.wasm"
+                    "filepath": "/functions/handlers/lookup.wasm",
+                    "pool_size": 1000
                 }
             },
             "routes": [