diff --git a/logback/build.gradle.kts b/logback/build.gradle.kts
index 4a09133..b1da91d 100644
--- a/logback/build.gradle.kts
+++ b/logback/build.gradle.kts
@@ -22,14 +22,14 @@ configurations["compileOnly"].extendsFrom(includeInJar)
 
 dependencies {
     implementation("com.fasterxml.jackson.core:jackson-core:2.11.1")
-    implementation("ch.qos.logback:logback-core:1.2.13")
-    implementation("ch.qos.logback:logback-classic:1.2.13")
+    implementation("ch.qos.logback:logback-core:1.3.15")
+    implementation("ch.qos.logback:logback-classic:1.3.15")
     implementation("com.newrelic.agent.java:newrelic-api:7.6.0")
 
     includeInJar(project(":core"))
 
-    testImplementation("ch.qos.logback:logback-core:1.3.9");
-    testImplementation("ch.qos.logback:logback-classic:1.3.9");
+    testImplementation("ch.qos.logback:logback-core:1.3.15");
+    testImplementation("ch.qos.logback:logback-classic:1.3.15");
     testImplementation("org.junit.jupiter:junit-jupiter:5.6.2")
     testImplementation("com.google.guava:guava:30.0-jre")
     testImplementation("org.mockito:mockito-core:3.4.4")