diff --git a/notifications/core/build.gradle b/notifications/core/build.gradle
index 1cef6633..f64402cf 100644
--- a/notifications/core/build.gradle
+++ b/notifications/core/build.gradle
@@ -144,6 +144,7 @@ dependencies {
     implementation "com.sun.mail:javax.mail:1.6.2"
     implementation "javax.activation:activation:1.1"
     implementation "org.slf4j:slf4j-api:${versions.slf4j}" //Needed for httpclient5
+    implementation "org.apache.logging.log4j:log4j-slf4j-impl:${versions.log4j}"
     testImplementation(
             'org.assertj:assertj-core:3.16.1',
             'org.junit.jupiter:junit-jupiter-api:5.6.2',