diff --git a/build.gradle b/build.gradle
index 343bcf4..ab110f2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,19 +1,22 @@
 group 'com.poprosturonin'
-version '1.0-SNAPSHOT'
+version ''
 
 buildscript {
+    ext {
+        springBootVersion = '2.0.0.BUILD-SNAPSHOT'
+    }
     repositories {
         mavenCentral()
+        maven { url 'https://repo.spring.io/libs-snapshot' }
     }
     dependencies {
-        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.4.1.RELEASE")
+        classpath "org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}"
     }
 }
 
 apply plugin: 'java'
-apply plugin: 'eclipse'
-apply plugin: 'idea'
-apply plugin: 'spring-boot'
+apply plugin: 'org.springframework.boot'
+apply plugin: 'io.spring.dependency-management'
 
 jar {
     baseName = 'memes-api'
@@ -22,6 +25,7 @@ jar {
 
 repositories {
     mavenCentral()
+    maven { url 'https://repo.spring.io/libs-snapshot' }
 }
 
 sourceCompatibility = 1.8
@@ -31,7 +35,7 @@ dependencies {
     compile 'org.jsoup:jsoup:1.10.1'
     compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.0'
     compile group: 'org.json', name: 'json', version: '20140107'
-    compile("org.springframework.boot:spring-boot-starter-web")
+    compile 'org.springframework.boot:spring-boot-starter-web'
     compile('org.springframework.boot:spring-boot-starter-security')
     compile("org.springframework.boot:spring-boot-starter-actuator")
     compile("org.springframework.boot:spring-boot-devtools")
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 01b8bf6..99340b4 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 933b647..2c2bbe5 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-bin.zip
diff --git a/src/main/java/com/poprosturonin/SecurityConfig.java b/src/main/java/com/poprosturonin/SecurityConfig.java
index 8f8a93e..79fdc51 100644
--- a/src/main/java/com/poprosturonin/SecurityConfig.java
+++ b/src/main/java/com/poprosturonin/SecurityConfig.java
@@ -1,9 +1,11 @@
 package com.poprosturonin;
 
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+import org.springframework.security.web.firewall.StrictHttpFirewall;
 
 @Configuration
 @EnableWebSecurity
@@ -18,4 +20,12 @@ protected void configure(HttpSecurity http) throws Exception {
                 .and()
                 .httpBasic();
     }
+
+    @Bean
+    public StrictHttpFirewall httpFirewall() {
+        StrictHttpFirewall firewall = new StrictHttpFirewall();
+        firewall.setAllowBackSlash(true);
+        firewall.setAllowUrlEncodedPercent(true);
+        return firewall;
+    }
 }