diff --git a/api/bin/spark.js b/api/bin/spark.js
index 8792c9e..555db30 100644
--- a/api/bin/spark.js
+++ b/api/bin/spark.js
@@ -31,7 +31,7 @@ const client = new pg.Pool({
   // this values should correlate with service concurrency hard_limit configured in fly.toml
   // and must take into account the connection limit of our PG server, see
   // https://fly.io/docs/postgres/managing/configuration-tuning/
-  max: 100,
+  max: 150,
   // close connections that haven't been used for one second
   idleTimeoutMillis: 1000,
   // automatically close connections older than 60 seconds
diff --git a/api/fly.toml b/api/fly.toml
index 620d283..93f0a34 100644
--- a/api/fly.toml
+++ b/api/fly.toml
@@ -27,8 +27,8 @@ processes = []
   script_checks = []
   [services.concurrency]
     # Remember to update PG Pool config option `max` in bin/spark.js when changing `hard_limit`.
-    hard_limit = 1500
-    soft_limit = 600
+    hard_limit = 2000
+    soft_limit = 1000
     type = "connections"
 
   [[services.ports]]