diff --git a/serverless.yml b/serverless.yml
index b45ce0f44..3916c7cae 100644
--- a/serverless.yml
+++ b/serverless.yml
@@ -258,6 +258,8 @@ functions:
       strategyTable: ${self:custom.strategyTable}
       BASE_URL: ${self:custom.customDomain.domainName}/${self:custom.customDomain.stage}
 
+    reservedConcurrency: 1
+
   # schedules all registered strategies on a daily base
   schedule:
     memorySize: 128
@@ -275,3 +277,5 @@ functions:
       topic: ${self:custom.snsTopic}
       tradeTable: ${self:custom.tradeTable}
       strategyTable: ${self:custom.strategyTable}
+
+    reservedConcurrency: 1