diff --git a/build.gradle b/build.gradle
index 50bceda..a9d9870 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,4 +1,14 @@
 buildscript {
+    ext.ktor_version = '1.2.2'
+    ext.kotlin_version = '1.3.41'
+    ext.logback_version = '1.2.1'
+    ext.moshi_version = '1.0.1'
+    ext.exposed_version = '0.13.5'
+    ext.h2_version = '1.4.199'
+    ext.hikaricp_version = '3.3.1'
+    ext.postgres_version = '42.2.6'
+    ext.junit_version = '4.12'
+
     repositories {
         jcenter()
     }
@@ -34,13 +44,13 @@ dependencies {
     implementation "ch.qos.logback:logback-classic:$logback_version"
     implementation "com.ryanharter.ktor:ktor-moshi:$moshi_version"
     implementation "io.ktor:ktor-auth:$ktor_version"
-    testImplementation "io.ktor:ktor-server-tests:$ktor_version"
-    testImplementation "io.ktor:ktor-server-test-host:$ktor_version"
     implementation "io.ktor:ktor-locations:$ktor_version"
     implementation "org.jetbrains.exposed:exposed:$exposed_version"
     implementation "com.h2database:h2:$h2_version"
     implementation "com.zaxxer:HikariCP:$hikaricp_version"
     implementation "org.postgresql:postgresql:$postgres_version"
     testRuntimeOnly "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
-    testImplementation group: 'junit', name: 'junit', version: '4.12'
+    testImplementation "io.ktor:ktor-server-test-host:$ktor_version"
+    testImplementation "io.ktor:ktor-server-tests:$ktor_version"
+    testImplementation group: 'junit', name: 'junit', version: "$junit_version"
 }
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 16112fe..20526fd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,10 +1 @@
-ktor_version=1.2.2
-kotlin.code.style=official
-kotlin_version=1.3.40
-logback_version=1.2.1
-moshi_version=1.0.1
-exposed_version=0.13.5
-h2_version=1.4.199
-hikaricp_version=3.3.1
-postgres_version=42.2.6
-spek_version=2.0.6
\ No newline at end of file
+ext.kotlin.code.style=official
\ No newline at end of file