diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 51c462e3..bf943923 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,33 +1,56 @@
+[versions]
+assertj = "3.22.0"
+guava = "30.1-jre"
+guice = "5.1.0"
+httpcomponents = "4.5.13"
+jackson = "2.13.5"
+jakarta-activation = "1.2.2"
+jakarta-inject = "1.0.5"
+jakarta-mail = "1.6.7"
+jakarta-servlet = "4.0.4"
+jsr305 = "3.0.2"
+junit5 = "5.8.2"
+opensaml = "2.6.4"
+org-json = "20190722"
+org-reflections = "0.9.11"
+poi = "5.2.2"
+resteasy = "4.7.6.Final"
+slf4j = "1.7.36"
+solrj = "7.7.3"
+typesafeconfig = "0.1.0"
+velocity = "2.3"
+zookeeper = "3.8.0"
+
 [libraries]
-assertj-core = { module = "org.assertj:assertj-core", version = "3.22.0" }
+assertj-core = { module = "org.assertj:assertj-core", version.ref = "assertj" }
 commons-io = { module = "commons-io:commons-io" }
-guava = { module = "com.google.guava:guava", version = "30.1-jre" }
-guice = { module = "com.google.inject:guice", version = "5.1.0" }
+guava = { module = "com.google.guava:guava", version.ref = "guava" }
+guice = { module = "com.google.inject:guice", version.ref = "guice" }
 guice-servlet = { module = "com.google.inject.extensions:guice-servlet" }
-httpcomponents-fluent-hc = { module = "org.apache.httpcomponents:fluent-hc", version = "4.5.13" }
-jackson-annotations = { module = "com.fasterxml.jackson.core:jackson-annotations", version = "2.13.5" }
-jackson-core = { module = "com.fasterxml.jackson.core:jackson-core", version = "2.13.5" }
+httpcomponents-fluent-hc = { module = "org.apache.httpcomponents:fluent-hc", version.ref = "httpcomponents" }
+jackson-annotations = { module = "com.fasterxml.jackson.core:jackson-annotations", version.ref = "jackson" }
+jackson-core = { module = "com.fasterxml.jackson.core:jackson-core", version.ref = "jackson" }
 jackson-databind = { module = "com.fasterxml.jackson.core:jackson-databind" }
 jackson-datatype-json-org = { module = "com.fasterxml.jackson.datatype:jackson-datatype-json-org" }
 jackson-datatype-jsr310 = { module = "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" }
-jakarta-activation = { module = "com.sun.activation:jakarta.activation", version = "1.2.2" }
-jakarta-inject-api = { module = "jakarta.inject:jakarta.inject-api", version = "1.0.5" }
-jakarta-mail-impl = { module = "com.sun.mail:jakarta.mail", version = "1.6.7" }
-jakarta-servlet-api = { module = "jakarta.servlet:jakarta.servlet-api", version = "4.0.4" }
-jsr305 = { module = "com.google.code.findbugs:jsr305", version = "3.0.2" }
-junit-jupiter-api = { module = "org.junit.jupiter:junit-jupiter-api", version = "5.8.2" }
-opensaml = { module = "org.opensaml:opensaml", version = "2.6.4" }
-org-json = { module = "org.json:json", version = "20190722" }
-org-reflections = { module = "org.reflections:reflections", version = "0.9.11" }
-poi = { module = "org.apache.poi:poi", version = "5.2.2" }
+jakarta-activation = { module = "com.sun.activation:jakarta.activation", version.ref = "jakarta-activation" }
+jakarta-inject-api = { module = "jakarta.inject:jakarta.inject-api", version.ref = "jakarta-inject" }
+jakarta-mail-impl = { module = "com.sun.mail:jakarta.mail", version.ref = "jakarta-mail" }
+jakarta-servlet-api = { module = "jakarta.servlet:jakarta.servlet-api", version.ref = "jakarta-servlet" }
+jsr305 = { module = "com.google.code.findbugs:jsr305", version.ref = "jsr305" }
+junit-jupiter-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit5" }
+opensaml = { module = "org.opensaml:opensaml", version.ref = "opensaml" }
+org-json = { module = "org.json:json", version.ref = "org-json" }
+org-reflections = { module = "org.reflections:reflections", version.ref = "org-reflections" }
+poi = { module = "org.apache.poi:poi", version.ref = "poi" }
 poi-ooxml = { module = "org.apache.poi:poi-ooxml" }
-resteasy-core = { module = "org.jboss.resteasy:resteasy-core", version = "4.7.6.Final" }
+resteasy-core = { module = "org.jboss.resteasy:resteasy-core", version.ref = "resteasy" }
 resteasy-guice = { module = "org.jboss.resteasy:resteasy-guice" }
 resteasy-jackson2-provider = { module = "org.jboss.resteasy:resteasy-jackson2-provider" }
-slf4j-api = { module = "org.slf4j:slf4j-api", version = "1.7.36" }
-slf4j-simple = { module = "org.slf4j:slf4j-simple", version = "1.7.36" }
-solr-solrj = { module = "org.apache.solr:solr-solrj", version = "7.7.3" }
-typesafeconfig-guice = { module = "com.github.racc:typesafeconfig-guice", version = "0.1.0" }
-velocity-engine-core = { module = "org.apache.velocity:velocity-engine-core", version = "2.3" }
-zookeeper = { module = "org.apache.zookeeper:zookeeper", version = "3.8.0" }
+slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
+slf4j-simple = { module = "org.slf4j:slf4j-simple", version.ref = "slf4j" }
+solr-solrj = { module = "org.apache.solr:solr-solrj", version.ref = "solrj" }
+typesafeconfig-guice = { module = "com.github.racc:typesafeconfig-guice", version.ref = "typesafeconfig" }
+velocity-engine-core = { module = "org.apache.velocity:velocity-engine-core", version.ref = "velocity" }
+zookeeper = { module = "org.apache.zookeeper:zookeeper", version.ref = "zookeeper" }
 zookeeper-jute = { module = "org.apache.zookeeper:zookeeper-jute" }
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