diff --git a/app/build.gradle b/app/build.gradle
index 31d4d566d4..c6e6112483 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -263,10 +263,10 @@ dependencies {
         // excluding org.json which is provided by Android
         exclude group: "org.json", module: "json"
     }
-    implementation "com.google.code.gson:gson:2.8.5"
+    implementation "com.google.code.gson:gson:2.8.6"
     implementation "com.google.guava:guava:24.1-jre"
 
-    implementation "net.danlew:android.joda:2.9.9.1"
+    implementation "net.danlew:android.joda:2.10.3"
     implementation "uk.com.robust-it:cloning:1.9.9"
 
     implementation 'org.mozilla:rhino:1.7.7.2'
@@ -274,7 +274,7 @@ dependencies {
     implementation 'com.github.DavidProdinger:weekdays-selector:1.1.0'
 
     testImplementation "junit:junit:4.12"
-    testImplementation "org.json:json:20140107"
+    testImplementation "org.json:json:20190722"
     testImplementation "org.mockito:mockito-core:2.8.47"
     testImplementation "org.powermock:powermock-api-mockito2:${powermockVersion}"
     testImplementation "org.powermock:powermock-module-junit4-rule-agent:${powermockVersion}"