diff --git a/internal/engines/cache/cache.go b/internal/engines/cache/cache.go
index 334c0e427..f8f8ad3f9 100644
--- a/internal/engines/cache/cache.go
+++ b/internal/engines/cache/cache.go
@@ -16,8 +16,10 @@ import (
 	base "github.com/Permify/permify/pkg/pb/base/v1"
 )
 
-var tracer = otel.Tracer("check-cache")
-var meter = otel.Meter("check-cache")
+var (
+	tracer = otel.Tracer("check-cache")
+	meter  = otel.Meter("check-cache")
+)
 
 // CheckEngineWithCache is a struct that holds an instance of a cache.Cache for managing engine cache.
 type CheckEngineWithCache struct {
diff --git a/internal/engines/cache/cache_test.go b/internal/engines/cache/cache_test.go
index e8ffbd822..45cfdf18e 100644
--- a/internal/engines/cache/cache_test.go
+++ b/internal/engines/cache/cache_test.go
@@ -42,7 +42,7 @@ var _ = Describe("cache", func() {
 			Expect(err).ShouldNot(HaveOccurred())
 
 			// Initialize a new EngineKeys struct with a new cache.Cache instance
-			engineKeys := CheckEngineWithCache{nil, nil, cache, nil}
+			engineKeys := CheckEngineWithCache{nil, nil, cache, nil, nil}
 
 			// Create a new PermissionCheckRequest and PermissionCheckResponse
 			checkReq := &base.PermissionCheckRequest{
@@ -92,7 +92,7 @@ var _ = Describe("cache", func() {
 			Expect(err).ShouldNot(HaveOccurred())
 
 			// Initialize a new EngineKeys struct with a new cache.Cache instance
-			engineKeys := CheckEngineWithCache{nil, nil, cache, nil}
+			engineKeys := CheckEngineWithCache{nil, nil, cache, nil, nil}
 
 			// Create a new PermissionCheckRequest and PermissionCheckResponse
 			checkReq := &base.PermissionCheckRequest{
@@ -142,7 +142,7 @@ var _ = Describe("cache", func() {
 			Expect(err).ShouldNot(HaveOccurred())
 
 			// Initialize a new EngineKeys struct with a new cache.Cache instance
-			engineKeys := CheckEngineWithCache{nil, nil, cache, nil}
+			engineKeys := CheckEngineWithCache{nil, nil, cache, nil, nil}
 
 			// Create a new PermissionCheckRequest and PermissionCheckResponse
 			checkReq := &base.PermissionCheckRequest{
@@ -286,7 +286,7 @@ var _ = Describe("cache", func() {
 			Expect(err).ShouldNot(HaveOccurred())
 
 			// Initialize a new EngineKeys struct with a new cache.Cache instance
-			engineKeys := CheckEngineWithCache{nil, nil, cache, nil}
+			engineKeys := CheckEngineWithCache{nil, nil, cache, nil, nil}
 
 			// Create a new PermissionCheckRequest
 			checkReq := &base.PermissionCheckRequest{
@@ -321,7 +321,7 @@ var _ = Describe("cache", func() {
 			Expect(err).ShouldNot(HaveOccurred())
 
 			// Initialize a new EngineKeys struct with a new cache.Cache instance
-			engineKeys := CheckEngineWithCache{nil, nil, cache, nil}
+			engineKeys := CheckEngineWithCache{nil, nil, cache, nil, nil}
 
 			// Create some new PermissionCheckRequests and PermissionCheckResponses
 			checkReq1 := &base.PermissionCheckRequest{
diff --git a/internal/invoke/invoke.go b/internal/invoke/invoke.go
index 4816a6ed2..f2e01b89f 100644
--- a/internal/invoke/invoke.go
+++ b/internal/invoke/invoke.go
@@ -16,8 +16,10 @@ import (
 	"github.com/Permify/permify/pkg/tuple"
 )
 
-var tracer = otel.Tracer("invoke")
-var meter = otel.Meter("invoke")
+var (
+	tracer = otel.Tracer("invoke")
+	meter  = otel.Meter("invoke")
+)
 
 // Invoker is an interface that groups multiple permission-related interfaces.
 // It is used to define a common contract for invoking various permission operations.
diff --git a/pkg/cmd/serve.go b/pkg/cmd/serve.go
index 4eee0d374..8b4b52a06 100644
--- a/pkg/cmd/serve.go
+++ b/pkg/cmd/serve.go
@@ -180,7 +180,7 @@ func serve() func(cmd *cobra.Command, args []string) error {
 				panic(err)
 			}
 
-			file, err := os.OpenFile(cfg.Log.File+"/app.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o666)
+			file, err := os.OpenFile(cfg.Log.File+"/app.json", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o600)
 			if err != nil {
 				panic(err)
 			}