diff --git a/build.gradle b/build.gradle
index df1aa1f3f..e2c968f1c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -115,7 +115,7 @@ allprojects  {
             dependency 'commons-io:commons-io:2.10.0'
             dependency 'org.drizzle.jdbc:drizzle-jdbc:1.4'
             dependency 'com.github.librepdf:openpdf:1.3.26'
-            dependency 'org.mnode.ical4j:ical4j:3.0.28'
+            dependency 'org.mnode.ical4j:ical4j:3.0.29'
             dependency 'org.quartz-scheduler:quartz:2.3.2'
             dependency 'com.amazonaws:aws-java-sdk-s3:1.12.19'
             dependency 'org.ehcache:ehcache:3.9.4'