diff --git a/build.gradle b/build.gradle
index c180094..95cf8b0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,6 @@
 plugins {
     id 'pl.allegro.tech.build.axion-release' version '1.3.4'
-    id 'org.jenkins-ci.jpi' version '0.38.0'
-    id 'java'
+    id 'org.jenkins-ci.jpi' version '0.39.0'
     id 'codenarc'
     id 'idea'
 }
@@ -40,23 +39,21 @@ configurations {
 }
 
 dependencies {
-    compile 'org.codehaus.groovy:groovy-all:2.4.11'
-    compile('com.atlassian.jira:jira-rest-java-client-core:5.2.1') {
+    implementation 'org.codehaus.groovy:groovy-all:2.4.11'
+    api('com.atlassian.jira:jira-rest-java-client-core:5.2.1') {
         exclude group: 'org.slf4j'
         exclude group: 'org.springframework'
     }
-    compile 'io.atlassian.fugue:fugue:4.7.2'
-    compile 'com.google.inject.extensions:guice-multibindings:4.0'
-    testCompile 'org.jenkins-ci:test-annotations:1.2'
-    testCompile 'org.jenkins-ci.plugins:matrix-auth:1.7@jar'
-    testCompile 'org.hamcrest:hamcrest-all:1.3'
-    testCompile 'org.spockframework:spock-core:1.0-groovy-2.4'
-    testCompile 'cglib:cglib-nodep:3.2.5' // used by Spock
-    testCompile 'org.objenesis:objenesis:2.5.1' // used by Spock
-    integrationTestCompile 'org.codehaus.groovy.modules.http-builder:http-builder:0.7.1'
-    jenkinsTest 'org.jenkins-ci.plugins.workflow:workflow-job:2.11.2@jar'
-    jenkinsTest 'org.jenkins-ci.plugins.workflow:workflow-api:2.15@jar' // used by workflow-job
-    jenkinsTest 'org.jenkins-ci.plugins.workflow:workflow-step-api:2.10@jar' // used by workflow-job
+    api 'io.atlassian.fugue:fugue:4.7.2'
+    api 'com.google.inject.extensions:guice-multibindings:4.0'
+    testImplementation 'org.jenkins-ci:test-annotations:1.2'
+    testImplementation 'org.jenkins-ci.plugins:matrix-auth:1.7'
+    testImplementation 'org.hamcrest:hamcrest-all:1.3'
+    testImplementation 'org.spockframework:spock-core:1.0-groovy-2.4'
+    testImplementation 'cglib:cglib-nodep:3.2.5' // used by Spock
+    testImplementation 'org.objenesis:objenesis:2.5.1' // used by Spock
+    integrationTestImplementation 'org.codehaus.groovy.modules.http-builder:http-builder:0.7.1'
+    testImplementation 'org.jenkins-ci.plugins.workflow:workflow-job:2.11.2'
 }
 
 test {