diff --git a/build.gradle b/build.gradle
index 01eafcb3..d6a44377 100644
--- a/build.gradle
+++ b/build.gradle
@@ -76,20 +76,24 @@ compileIntTestJava.options.encoding = "UTF-8"
 dependencies {
     txtmark group: 'com.github.rjeschke', name: 'txtmark', version: '0.13'
 
-    implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.17.1'
-    implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.17.1'
-    implementation group: 'org.apache.logging.log4j', name: 'log4j-iostreams', version: '2.17.1'
-    implementation group: 'com.fifesoft', name: 'rsyntaxtextarea', version: '3.2.0'
+    def log4jVersion = '2.19.0'
+    def poiVersion = '5.2.3'
+    def junitVersion = '5.9.1'
+
+    implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: log4jVersion
+    implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: log4jVersion
+    implementation group: 'org.apache.logging.log4j', name: 'log4j-iostreams', version: log4jVersion
+    implementation group: 'com.fifesoft', name: 'rsyntaxtextarea', version: '3.3.0'
     implementation group: 'org.jfree', name: 'jfreechart', version: '1.5.3'
-    implementation group: 'org.apache.poi', name: 'poi', version: '5.1.0'
-    implementation group: 'org.apache.poi', name: 'poi-ooxml', version: '5.1.0'
+    implementation group: 'org.apache.poi', name: 'poi', version: poiVersion
+    implementation group: 'org.apache.poi', name: 'poi-ooxml', version: poiVersion
     implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version:'2.11.2'
     implementation group: 'org.drjekyll', name: 'fontchooser', version: '2.4'
     implementation group: 'net.java.dev.jna', name: 'jna', version: '5.10.0'
 
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.3.1'
-    testImplementation 'org.junit.jupiter:junit-jupiter-params:5.3.1'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.3.1'
+    testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: junitVersion
+    testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-params', version: junitVersion
+    testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: junitVersion
     intTestImplementation group: 'org.assertj', name: 'assertj-swing-junit', version: '3.9.2'
 }
 
diff --git a/gradle.properties b/gradle.properties
deleted file mode 100644
index 812ff379..00000000
--- a/gradle.properties
+++ /dev/null
@@ -1,42 +0,0 @@
-#Copyright 2019 Scott Logic Ltd
-#
-#Licensed under the Apache License, Version 2.0 (the "License");
-#you may not use this file except in compliance with the License.
-#You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-#Unless required by applicable law or agreed to in writing, software
-#distributed under the License is distributed on an "AS IS" BASIS,
-#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#See the License for the specific language governing permissions and
-#limitations under the License.
-
-GUICE_VERSION=4.2.2
-COMMONS_LANG3_VERSION=3.1
-THREE_TEN_VERSION=1.5.0
-GLASSFISH_VERSION=1.1.3
-
-HAMCREST_VERSION=2.0.0.0
-SHAZAMCREST_VERSION=0.11
-AUTOMATON_VERSION=1.11-8
-
-PICOCLI_VERSION= 4.0.2
-COMMONS_CSV_VERSION=1.6
-COMMONS_IO_VERSION=2.6
-GSON_VERSION=2.8.5
-LEADPONY_JUSTIFY_VERSION=0.14.0
-JACKSON_VERSION=2.11.1
-MEDEIA_VALIDATOR_JACKSON_VERSION=1.1.1
-
-JUNIT_JUPITER_VERSION=5.5.1
-JUNIT_4_VERSION=4.12
-JUNIT_PLATFORM_RUNNER_VERSION=1.3.1
-MOCKITO_VERSION=1.9.5
-MOCKITO_JUNIT_JUPITER_VERSION=2.28.2
-GHERKIN_VERSION=5.0.0
-CUCUMBER_VERSION=4.0.0
-CUCUMBER_EXPRESSIONS_VERSION=6.0.1
-CUCUMBER_PICOCONTAINER_VERSION=1.2.5
-
-FAKER_VERSION=1.0.2