diff --git a/pkg/apis/core/v1/types.go b/pkg/apis/core/v1/types.go
index d0208c88..c5ae1dbf 100644
--- a/pkg/apis/core/v1/types.go
+++ b/pkg/apis/core/v1/types.go
@@ -351,7 +351,7 @@ type (
 		IdleTimeout *int `json:"idletimeout,omitempty"`
 
 		// Maximum number of pods to be specialized which will serve requests
-		// This is optional. If not specified default value will be taken as 5
+		// This is optional. If not specified default value will be taken as 500
 		Concurrency int `json:"concurrency,omitempty"`
 
 		// RequestsPerPod indicates the maximum number of concurrent requests that can be served by a specialized pod
diff --git a/pkg/crd/crdvalidations.go b/pkg/crd/crdvalidations.go
index e2bde072..c1dd072e 100644
--- a/pkg/crd/crdvalidations.go
+++ b/pkg/crd/crdvalidations.go
@@ -47,7 +47,7 @@ var (
 				},
 				"concurrency": {
 					Type:        "integer",
-					Description: "Concurrency specifies the maximum number of pods that can be specialized concurrently to serve requests.\n This is optional. If not specified default value will be taken as 5",
+					Description: "Concurrency specifies the maximum number of pods that can be specialized concurrently to serve requests.\n This is optional. If not specified default value will be taken as 500",
 				},
 				"requestsPerPod": {
 					Type:        "integer",
diff --git a/pkg/executor/api.go b/pkg/executor/api.go
index 99ceb4be..979ea316 100644
--- a/pkg/executor/api.go
+++ b/pkg/executor/api.go
@@ -59,7 +59,7 @@ func (executor *Executor) getServiceForFunctionAPI(w http.ResponseWriter, r *htt
 	if t == fv1.ExecutorTypePoolmgr {
 		concurrency := fn.Spec.Concurrency
 		if concurrency == 0 {
-			concurrency = 5
+			concurrency = 500
 		}
 		requestsPerpod := fn.Spec.RequestsPerPod
 		if requestsPerpod == 0 {
diff --git a/pkg/fission-cli/cmd/function/create.go b/pkg/fission-cli/cmd/function/create.go
index 621b78dd..58ffa0db 100644
--- a/pkg/fission-cli/cmd/function/create.go
+++ b/pkg/fission-cli/cmd/function/create.go
@@ -41,7 +41,7 @@ import (
 const (
 	DEFAULT_MIN_SCALE             = 1
 	DEFAULT_TARGET_CPU_PERCENTAGE = 80
-	DEFAULT_CONCURRENCY           = 5
+	DEFAULT_CONCURRENCY           = 500
 )
 
 type CreateSubCommand struct {
diff --git a/pkg/fission-cli/flag/flag.go b/pkg/fission-cli/flag/flag.go
index d782f3e8..65351491 100644
--- a/pkg/fission-cli/flag/flag.go
+++ b/pkg/fission-cli/flag/flag.go
@@ -110,7 +110,7 @@ var (
 	FnTestHeader            = Flag{Type: StringSlice, Name: flagkey.FnTestHeader, Short: "H", Usage: "Request headers"}
 	FnTestQuery             = Flag{Type: StringSlice, Name: flagkey.FnTestQuery, Short: "q", Usage: "Request query parameters: -q key1=value1 -q key2=value2"}
 	FnIdleTimeout           = Flag{Type: Int, Name: flagkey.FnIdleTimeout, Usage: "The length of time (in seconds) that a function is idle before pod(s) are eligible for recycling", DefaultValue: 120}
-	FnConcurrency           = Flag{Type: Int, Name: flagkey.FnConcurrency, Aliases: []string{"con"}, Usage: "Maximum number of pods specialized concurrently to serve requests", DefaultValue: 5}
+	FnConcurrency           = Flag{Type: Int, Name: flagkey.FnConcurrency, Aliases: []string{"con"}, Usage: "Maximum number of pods specialized concurrently to serve requests", DefaultValue: 500}
 	FnRequestsPerPod        = Flag{Type: Int, Name: flagkey.FnRequestsPerPod, Aliases: []string{"rpp"}, Usage: "Maximum number of concurrent requests that can be served by a specialized pod", DefaultValue: 1}
 
 	HtName              = Flag{Type: String, Name: flagkey.HtName, Usage: "HTTP trigger name"}