diff --git a/gradle/verification-metadata.xml b/gradle/verification-metadata.xml
index a267dfdddbc28929501ebe264af0983e3e79dbc1..f1f02793112ea8c0c1928d28368b77a1616c7c7e 100644
--- a/gradle/verification-metadata.xml
+++ b/gradle/verification-metadata.xml
@@ -785,25 +785,25 @@
             <sha256 value="100f793ba27f8b4e4204edb46171ebf36e54e0f94cfc02527fea07a0bb1fceb7" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="ch.qos.logback" name="logback-classic" version="1.2.11">
-         <artifact name="logback-classic-1.2.11.jar">
-            <sha256 value="4d8e899621a3006c2f66e19feab002b11e6cfc5cb1854fc41f01532c00deb2aa" origin="Generated by Gradle"/>
+      <component group="ch.qos.logback" name="logback-classic" version="1.4.5">
+         <artifact name="logback-classic-1.4.5.jar">
+            <sha256 value="595431df58c74d515dd4c225b2d84d9f23e16a24daeaafd7c94b059312a8b493" origin="Generated by Gradle"/>
          </artifact>
-         <artifact name="logback-classic-1.2.11.pom">
-            <sha256 value="64e01794db4659829862a44574e066bf6940678fb1657e26668bf6414596244d" origin="Generated by Gradle"/>
+         <artifact name="logback-classic-1.4.5.pom">
+            <sha256 value="8bfb0ea99168c5f1c63888bbe5eacb4b7eacdf8a2d2226d9b0c023f3b5887fde" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="ch.qos.logback" name="logback-core" version="1.2.11">
-         <artifact name="logback-core-1.2.11.jar">
-            <sha256 value="6ce1e9397be8298a2e99029f55f955c6fa3cef255171c554d0b9c201cffd0159" origin="Generated by Gradle"/>
+      <component group="ch.qos.logback" name="logback-core" version="1.4.5">
+         <artifact name="logback-core-1.4.5.jar">
+            <sha256 value="8604e7c327556b097590701fba88dae84c581167f2746378f736b37269452380" origin="Generated by Gradle"/>
          </artifact>
-         <artifact name="logback-core-1.2.11.pom">
-            <sha256 value="53074a2590e0d64da5bd5b09cfe4a9c1cfcbf987e503940e8184ee39fe855d14" origin="Generated by Gradle"/>
+         <artifact name="logback-core-1.4.5.pom">
+            <sha256 value="68988021b6ecbf3d40fb74a3e8561e87ae66edc3a6d84e5c100880bea3208891" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="ch.qos.logback" name="logback-parent" version="1.2.11">
-         <artifact name="logback-parent-1.2.11.pom">
-            <sha256 value="c3c0f80dfb31aa922f8c60fe22c24b04eee41aa9a17466cdd85d81474196d1ef" origin="Generated by Gradle"/>
+      <component group="ch.qos.logback" name="logback-parent" version="1.4.5">
+         <artifact name="logback-parent-1.4.5.pom">
+            <sha256 value="af2ef873616180481564afb295b877d7558077cca9a3786b90ce5407b9434acc" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="com.android" name="signflinger" version="7.3.1">
@@ -1338,12 +1338,12 @@
             <sha256 value="fae032522e30b7811b4bd1e466c9f2be41801c018c13644bb0cbc38c0233cad3" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="com.github.tony19" name="logback-android" version="2.0.1">
-         <artifact name="logback-android-2.0.1.aar">
-            <sha256 value="3101005c17a7324515f74bec485d1566c3caedbc078d9dfa349354fd7859e368" origin="Generated by Gradle"/>
+      <component group="com.github.tony19" name="logback-android" version="3.0.0">
+         <artifact name="logback-android-3.0.0.aar">
+            <sha256 value="7755ead239b4f6f354134c9e27fb632fffab45aed7212c001f9d1d5b6f14a134" origin="Generated by Gradle"/>
          </artifact>
-         <artifact name="logback-android-2.0.1.pom">
-            <sha256 value="41e08c5ee325c4cce57251e7f9a7b54e9593c347392f9f2332fa30f0cdcff2b1" origin="Generated by Gradle"/>
+         <artifact name="logback-android-3.0.0.pom">
+            <sha256 value="413c3597f13b73aa771918d29577a1eef7c2d4136aca7e54e687fcca0bddc7d3" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="com.google.android" name="annotations" version="4.1.1.4">
@@ -4118,12 +4118,12 @@
             <sha256 value="7e0747751e9b67e19dcb5206f04ea22cc03d250c422426402eadd03513f2c314" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="org.slf4j" name="slf4j-api" version="1.7.36">
-         <artifact name="slf4j-api-1.7.36.jar">
-            <sha256 value="d3ef575e3e4979678dc01bf1dcce51021493b4d11fb7f1be8ad982877c16a1c0" origin="Generated by Gradle"/>
+      <component group="org.slf4j" name="slf4j-api" version="2.0.6">
+         <artifact name="slf4j-api-2.0.6.jar">
+            <sha256 value="2f2a92d410b268139d7d63b75ed25e21995cfe4100c19bf23577cfdbc8077bda" origin="Generated by Gradle"/>
          </artifact>
-         <artifact name="slf4j-api-1.7.36.pom">
-            <sha256 value="fb046a9c229437928bb11c2d27c8b5d773eb8a25e60cbd253d985210dedc2684" origin="Generated by Gradle"/>
+         <artifact name="slf4j-api-2.0.6.pom">
+            <sha256 value="8b4e86c53d2783608f1aea213d906c5bac5c0433e00b19239bb16764b9fa3736" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="org.slf4j" name="slf4j-parent" version="1.7.30">
@@ -4131,9 +4131,9 @@
             <sha256 value="11647956e48a0c5bfb3ac33f6da7e83f341002b6857efd335a505b687be34b75" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="org.slf4j" name="slf4j-parent" version="1.7.36">
-         <artifact name="slf4j-parent-1.7.36.pom">
-            <sha256 value="bb388d37fbcdd3cde64c3cede21838693218dc451f04040c5df360a78ed7e812" origin="Generated by Gradle"/>
+      <component group="org.slf4j" name="slf4j-parent" version="2.0.6">
+         <artifact name="slf4j-parent-2.0.6.pom">
+            <sha256 value="1482650cbe31e408c1dc89021cbae1d3044ad4a01bf8f62ba360b6a813a13124" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="org.sonatype.oss" name="oss-parent" version="7">
diff --git a/mailbox-android/build.gradle b/mailbox-android/build.gradle
index bfceff314d6c6670f1a79536e7d2a3015c294cd2..420dc90b27bc8426d71e6630dac076d907450006 100644
--- a/mailbox-android/build.gradle
+++ b/mailbox-android/build.gradle
@@ -79,7 +79,7 @@ dependencies {
     implementation project(path: ':mailbox-core', configuration: 'default')
     implementation 'org.briarproject:dont-kill-me-lib:0.2.5'
 
-    implementation 'com.github.tony19:logback-android:2.0.1'
+    implementation 'com.github.tony19:logback-android:3.0.0'
     implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation "androidx.activity:activity-ktx:1.6.1"
     implementation "androidx.fragment:fragment-ktx:1.5.5"
diff --git a/mailbox-cli/build.gradle b/mailbox-cli/build.gradle
index b734a186ad3954d7c1dd7fbbdbca978ca3f64b57..562eaa310bf9c7422e345a01326d35ca53b01c9b 100644
--- a/mailbox-cli/build.gradle
+++ b/mailbox-cli/build.gradle
@@ -19,7 +19,7 @@ dependencies {
     implementation project(path: ':mailbox-core', configuration: 'default')
     implementation project(path: ':mailbox-lib', configuration: 'default')
 
-    implementation "ch.qos.logback:logback-classic:1.2.11"
+    implementation "ch.qos.logback:logback-classic:1.4.5"
     implementation 'com.github.ajalt:clikt:2.2.0'
 
     kapt "com.google.dagger:hilt-compiler:$hilt_version"
diff --git a/mailbox-core/build.gradle b/mailbox-core/build.gradle
index d2bf3a469c652318e051033354a2dafcee1a0025..c9d66e768cb1815d2d74c7fc3b19ec1e1f5b59d6 100644
--- a/mailbox-core/build.gradle
+++ b/mailbox-core/build.gradle
@@ -40,7 +40,7 @@ dependencies {
     implementation('com.fasterxml.jackson.module:jackson-module-kotlin') {
         version { strictly "$jackson_version" }
     }
-    api "org.slf4j:slf4j-api:1.7.36"
+    api "org.slf4j:slf4j-api:2.0.6"
 
     //noinspection GradleDependency
     implementation 'com.h2database:h2:1.4.192' // The last version that supports Java 1.6
@@ -53,7 +53,7 @@ dependencies {
     testImplementation "org.junit.jupiter:junit-jupiter-params:$junit_version"
     testImplementation "org.junit.jupiter:junit-jupiter-engine:$junit_version"
     testImplementation "io.mockk:mockk:$mockk_version"
-    testImplementation "ch.qos.logback:logback-classic:1.2.11"
+    testImplementation "ch.qos.logback:logback-classic:1.4.5"
     testImplementation "io.ktor:ktor-client-cio:$ktor_version"
     testImplementation "io.ktor:ktor-serialization-jackson:$ktor_version"
     testImplementation "io.ktor:ktor-client-content-negotiation:$ktor_version"
diff --git a/mailbox-lib/build.gradle b/mailbox-lib/build.gradle
index 4cd8dde5b1cf8c18ea6b9da6aa2b8da3188a67db..4e94c0645510252b77d2ce3f4c7c687dd0af6bd4 100644
--- a/mailbox-lib/build.gradle
+++ b/mailbox-lib/build.gradle
@@ -34,7 +34,7 @@ dependencies {
     testImplementation "org.junit.jupiter:junit-jupiter-params:$junit_version"
     testImplementation "org.junit.jupiter:junit-jupiter-engine:$junit_version"
     testImplementation "io.mockk:mockk:$mockk_version"
-    testImplementation "ch.qos.logback:logback-classic:1.2.11"
+    testImplementation "ch.qos.logback:logback-classic:1.4.5"
 }
 
 test {