diff --git a/src/main/java/com/restful_spring/rest_interceptor/RestInterceptor.java b/src/main/java/com/restful_spring/rest_interceptor/RestInterceptor.java
index 626d59a..d44b84f 100644
--- a/src/main/java/com/restful_spring/rest_interceptor/RestInterceptor.java
+++ b/src/main/java/com/restful_spring/rest_interceptor/RestInterceptor.java
@@ -16,8 +16,8 @@
  */
 public abstract class RestInterceptor implements HandlerInterceptor {
 
-    protected RestfulPatterns restfulPatterns = RestfulPatterns.empty();
-    protected RestfulPatterns excludePatterns = RestfulPatterns.empty();
+    RestfulPatterns restfulPatterns = RestfulPatterns.empty();
+    RestfulPatterns excludePatterns = RestfulPatterns.empty();
 
     @Override
     public final boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
diff --git a/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistration.java b/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistration.java
index d0524ea..99179e5 100644
--- a/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistration.java
+++ b/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistration.java
@@ -11,7 +11,7 @@
  * @author cookie-meringue
  * @since 0.1
  */
-public class RestInterceptorRegistration {
+public final class RestInterceptorRegistration {
 
     private final RestInterceptor restInterceptor;
     private final InterceptorRegistration registration;
@@ -48,7 +48,7 @@ public RestInterceptorRegistration addRestfulPatterns(Collection<RestfulPattern>
      * @return this RestInterceptorRegistration instance for method chaining
      * @since 1.0.2
      */
-    public RestInterceptorRegistration addRestfulPatterns(RestfulPatterns restfulPatterns) {
+    RestInterceptorRegistration addRestfulPatterns(RestfulPatterns restfulPatterns) {
         restInterceptor.addRestfulPatterns(restfulPatterns);
         registration.addPathPatterns(restfulPatterns.getPaths());
         return this;
@@ -78,7 +78,7 @@ public RestInterceptorRegistration excludeRestfulPatterns(Collection<RestfulPatt
      * @return this RestInterceptorRegistration instance for method chaining
      * @since 1.0.2
      */
-    public RestInterceptorRegistration excludeRestfulPatterns(RestfulPatterns excludePatterns) {
+    RestInterceptorRegistration excludeRestfulPatterns(RestfulPatterns excludePatterns) {
         restInterceptor.addExcludePatterns(excludePatterns);
         registration.excludePathPatterns(excludePatterns.getPaths());
         return this;
diff --git a/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistry.java b/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistry.java
index a2980da..45a8985 100644
--- a/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistry.java
+++ b/src/main/java/com/restful_spring/rest_interceptor/RestInterceptorRegistry.java
@@ -8,7 +8,7 @@
  * @author cookie-meringue
  * @since 0.1
  */
-public class RestInterceptorRegistry {
+public final class RestInterceptorRegistry {
 
     private final InterceptorRegistry registry;
 
diff --git a/src/main/java/com/restful_spring/rest_interceptor/RestfulPattern.java b/src/main/java/com/restful_spring/rest_interceptor/RestfulPattern.java
index 7ef24aa..5e5a91e 100644
--- a/src/main/java/com/restful_spring/rest_interceptor/RestfulPattern.java
+++ b/src/main/java/com/restful_spring/rest_interceptor/RestfulPattern.java
@@ -19,7 +19,7 @@
  * @author cookie-meringue
  * @since 0.1
  */
-public class RestfulPattern {
+public final class RestfulPattern {
 
     private final String path;
     private final Set<HttpMethod> methods;
@@ -73,12 +73,12 @@ public static RestfulPatternBuilder builder() {
      * Compare the request URI and HTTP method.
      * <p> If the request URI and HTTP method match, return true.
      */
-    public boolean matches(final HttpServletRequest request) {
+    boolean matches(final HttpServletRequest request) {
         return methods.contains(HttpMethod.valueOf(request.getMethod())) &&
-                pathMatcher.match(path, request.getRequestURI());
+            pathMatcher.match(path, request.getRequestURI());
     }
 
-    public String getPath() {
+    String getPath() {
         return path;
     }
 
@@ -107,9 +107,9 @@ public int hashCode() {
     @Override
     public String toString() {
         return "RestfulPattern{" +
-                "methods=" + methods +
-                ", path=" + path +
-                '}';
+            "methods=" + methods +
+            ", path=" + path +
+            '}';
     }
 
     /**
diff --git a/src/main/java/com/restful_spring/rest_interceptor/RestfulPatterns.java b/src/main/java/com/restful_spring/rest_interceptor/RestfulPatterns.java
index 920e9fc..f07dfec 100644
--- a/src/main/java/com/restful_spring/rest_interceptor/RestfulPatterns.java
+++ b/src/main/java/com/restful_spring/rest_interceptor/RestfulPatterns.java
@@ -13,7 +13,7 @@
  * @author cookie-meringue
  * @since 1.0.2
  */
-public final class RestfulPatterns {
+final class RestfulPatterns {
 
     private final List<RestfulPattern> values;
 
@@ -52,7 +52,7 @@ static RestfulPatterns from(final Collection<RestfulPattern> values) {
      */
     boolean noneMatches(final HttpServletRequest request) {
         return values.stream()
-                .noneMatch(pattern -> pattern.matches(request));
+            .noneMatch(pattern -> pattern.matches(request));
     }
 
     /**
@@ -64,7 +64,7 @@ boolean noneMatches(final HttpServletRequest request) {
      */
     boolean anyMatches(final HttpServletRequest request) {
         return values.stream()
-                .anyMatch(pattern -> pattern.matches(request));
+            .anyMatch(pattern -> pattern.matches(request));
     }
 
     /**
@@ -83,7 +83,7 @@ void addAll(final RestfulPatterns restfulPatterns) {
      */
     List<String> getPaths() {
         return values.stream()
-                .map(RestfulPattern::getPath)
-                .toList();
+            .map(RestfulPattern::getPath)
+            .toList();
     }
 }