diff --git a/build.gradle b/build.gradle
index 4fa202b..2f9769f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -50,7 +50,7 @@ dependencies {
     compile "io.ktor:ktor-gson:$ktor_version"
     compile "org.jetbrains.squash:squash-h2:$squash_version"
     compile "ch.qos.logback:logback-classic:1.2.1"
-    compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.25'
+    compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.31'
 
     testCompile "io.ktor:ktor-server-test-host:$ktor_version"
     testCompile group: 'junit', name: 'junit', version: '4.12'