diff --git a/patterns/intercepting-filter/pom.xml b/patterns/intercepting-filter/pom.xml
index 550409b643..5b7eb48a86 100644
--- a/patterns/intercepting-filter/pom.xml
+++ b/patterns/intercepting-filter/pom.xml
@@ -22,7 +22,6 @@
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
 			<version>${slf4j.version}</version>
-			<scope>provided</scope>
 		</dependency>
 	</dependencies>
 
diff --git a/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiApplication.java b/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiApplication.java
index 5ef699d264..c0ad5eb690 100644
--- a/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiApplication.java
+++ b/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiApplication.java
@@ -3,24 +3,14 @@ package org.baeldung.config;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.security.oauth2.client.EnableOAuth2Sso;
+import org.springframework.boot.web.support.SpringBootServletInitializer;
 import org.springframework.context.annotation.Bean;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.web.context.request.RequestContextListener;
 
 @EnableOAuth2Sso
 @SpringBootApplication
-public class UiApplication extends WebSecurityConfigurerAdapter {
+public class UiApplication extends SpringBootServletInitializer {
 
-    @Override
-    public void configure(HttpSecurity http) throws Exception {
-        http.antMatcher("/**")
-            .authorizeRequests()
-            .antMatchers("/", "/login**")
-            .permitAll()
-            .anyRequest()
-            .authenticated();
-    }
 
     @Bean
     public RequestContextListener requestContextListener() {
diff --git a/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiSecurityConfig.java b/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiSecurityConfig.java
new file mode 100644
index 0000000000..5dbe9ada34
--- /dev/null
+++ b/spring-security-sso/spring-security-sso-ui-2/src/main/java/org/baeldung/config/UiSecurityConfig.java
@@ -0,0 +1,20 @@
+package org.baeldung.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+
+@Configuration
+public class UiSecurityConfig extends WebSecurityConfigurerAdapter {
+
+    @Override
+    public void configure(HttpSecurity http) throws Exception {
+        http.antMatcher("/**")
+            .authorizeRequests()
+            .antMatchers("/", "/login**")
+            .permitAll()
+            .anyRequest()
+            .authenticated();
+    }
+
+}
diff --git a/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiApplication.java b/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiApplication.java
index 5ef699d264..6e29879cb3 100644
--- a/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiApplication.java
+++ b/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiApplication.java
@@ -3,24 +3,13 @@ package org.baeldung.config;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.security.oauth2.client.EnableOAuth2Sso;
+import org.springframework.boot.web.support.SpringBootServletInitializer;
 import org.springframework.context.annotation.Bean;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.web.context.request.RequestContextListener;
 
 @EnableOAuth2Sso
 @SpringBootApplication
-public class UiApplication extends WebSecurityConfigurerAdapter {
-
-    @Override
-    public void configure(HttpSecurity http) throws Exception {
-        http.antMatcher("/**")
-            .authorizeRequests()
-            .antMatchers("/", "/login**")
-            .permitAll()
-            .anyRequest()
-            .authenticated();
-    }
+public class UiApplication extends SpringBootServletInitializer {
 
     @Bean
     public RequestContextListener requestContextListener() {
diff --git a/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiSecurityConfig.java b/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiSecurityConfig.java
new file mode 100644
index 0000000000..5dbe9ada34
--- /dev/null
+++ b/spring-security-sso/spring-security-sso-ui/src/main/java/org/baeldung/config/UiSecurityConfig.java
@@ -0,0 +1,20 @@
+package org.baeldung.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+
+@Configuration
+public class UiSecurityConfig extends WebSecurityConfigurerAdapter {
+
+    @Override
+    public void configure(HttpSecurity http) throws Exception {
+        http.antMatcher("/**")
+            .authorizeRequests()
+            .antMatchers("/", "/login**")
+            .permitAll()
+            .anyRequest()
+            .authenticated();
+    }
+
+}
diff --git a/spring-zuul/spring-zuul-ui/src/main/java/org/baeldung/config/UiApplication.java b/spring-zuul/spring-zuul-ui/src/main/java/org/baeldung/config/UiApplication.java
index 625e5439ee..b8eda25960 100644
--- a/spring-zuul/spring-zuul-ui/src/main/java/org/baeldung/config/UiApplication.java
+++ b/spring-zuul/spring-zuul-ui/src/main/java/org/baeldung/config/UiApplication.java
@@ -2,11 +2,12 @@ package org.baeldung.config;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.support.SpringBootServletInitializer;
 import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
 
 @EnableZuulProxy
 @SpringBootApplication
-public class UiApplication {
+public class UiApplication extends SpringBootServletInitializer {
 
     public static void main(String[] args) {
         SpringApplication.run(UiApplication.class, args);