diff --git a/common/version/version.go b/common/version/version.go
index bbdef889fb..1dc5109984 100644
--- a/common/version/version.go
+++ b/common/version/version.go
@@ -5,7 +5,7 @@ import (
 	"runtime/debug"
 )
 
-var tag = "v4.4.89"
+var tag = "v4.4.90"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {
diff --git a/coordinator/internal/logic/provertask/prover_task.go b/coordinator/internal/logic/provertask/prover_task.go
index 512e06718d..2a2b20df8d 100644
--- a/coordinator/internal/logic/provertask/prover_task.go
+++ b/coordinator/internal/logic/provertask/prover_task.go
@@ -79,7 +79,8 @@ func (b *BaseProverTask) checkParameter(ctx *gin.Context) (*proverTaskContext, e
 
 	ProverProviderType, ProverProviderTypeExist := ctx.Get(coordinatorType.ProverProviderTypeKey)
 	if !ProverProviderTypeExist {
-		return nil, errors.New("get prover provider type from context failed")
+		// for backward compatibility, set ProverProviderType as internal
+		ProverProviderType = float64(coordinatorType.ProverProviderTypeInternal)
 	}
 	ptc.ProverProviderType = uint8(ProverProviderType.(float64))