diff --git a/datamover/build.gradle b/datamover/build.gradle
index 331276079dcaac5322dd418212beb6e845cac0a5..1c51f1fca504438ad7a996fd585948ab56587028 100644
--- a/datamover/build.gradle
+++ b/datamover/build.gradle
@@ -10,7 +10,6 @@ dependencies {
     libJars 'sis:sis-base:18.09.0',
         'cisd:cisd-args4j:9.11.2',
         'apache:log4j:1.2.15',
-        'javax:activation:1.1.1',
         'javax:mail:1.4.3'
         
     testCompile project(path: ':common', configuration: 'tests')
diff --git a/deep_sequencing_unit/build.gradle b/deep_sequencing_unit/build.gradle
index 71aea8e281bd6d2a41f67018ecc03a003f11b76b..c675eb5c67bfa92bbe0378e2668465dd90e4d423 100644
--- a/deep_sequencing_unit/build.gradle
+++ b/deep_sequencing_unit/build.gradle
@@ -25,7 +25,6 @@ dependencies {
     testCompile project(path: ':datastore_server', configuration: 'tests')
     
     trackingClient 'sis:sis-base:18.09.0',
-                    'javax:activation:1.1.1',
                     'javax:mail:1.4.3',
                     'apache:log4j:1.2.15',
                     'springframework:spring-aop:5.0.1.RELEASE',