diff --git a/README.md b/README.md
index b8ad4dd..33b2553 100644
--- a/README.md
+++ b/README.md
@@ -173,7 +173,7 @@ app</a>**
 
 # Dependency
 
-Android Support library ```v23.1.1```
+Android Support library ```v24.1.1```
 
 CirclePageIndicator by **JakeWharton** (integrated within the library).
 
diff --git a/permission/src/main/java/com/fastaccess/permission/base/PermissionHelper.java b/permission/src/main/java/com/fastaccess/permission/base/PermissionHelper.java
index 6f439cc..ba0e3ea 100644
--- a/permission/src/main/java/com/fastaccess/permission/base/PermissionHelper.java
+++ b/permission/src/main/java/com/fastaccess/permission/base/PermissionHelper.java
@@ -21,9 +21,10 @@
 import java.util.List;
 
 public class PermissionHelper implements OnActivityPermissionCallback {
-    private final OnPermissionCallback permissionCallback;
     private static final int OVERLAY_PERMISSION_REQ_CODE = 2;
-    private final int REQUEST_PERMISSIONS = 1;
+    private static final int REQUEST_PERMISSIONS = 1;
+
+    private final OnPermissionCallback permissionCallback;
     private final Activity context;
     private boolean forceAccepting;
 
@@ -57,11 +58,9 @@ public static PermissionHelper getInstance(@NonNull Activity context, @NonNull O
                 String[] declinedPermissions = declinedPermissions(context, permissions);
                 List<Boolean> deniedPermissionsLength = new ArrayList<>();//needed
                 for (String permissionName : declinedPermissions) {
-                    if (permissionName != null) {
-                        if (!isExplanationNeeded(permissionName)) {
-                            permissionCallback.onPermissionReallyDeclined(permissionName);
-                            deniedPermissionsLength.add(false);
-                        }
+                    if (permissionName != null && !isExplanationNeeded(permissionName)) {
+                        permissionCallback.onPermissionReallyDeclined(permissionName);
+                        deniedPermissionsLength.add(false);
                     }
                 }
                 if (deniedPermissionsLength.size() == 0) {
@@ -105,7 +104,7 @@ public PermissionHelper setForceAccepting(boolean forceAccepting) {
      *         (it can be one of these types (String), (String[])
      */
     public PermissionHelper request(@NonNull Object permissionName) {
-        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.M) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             if (permissionName instanceof String) {
                 handleSingle((String) permissionName);
             } else if (permissionName instanceof String[]) {