diff --git a/lib/kotlin/cross-test-client/build.gradle.kts b/lib/kotlin/cross-test-client/build.gradle.kts
index e5f87dd..5090de9 100644
--- a/lib/kotlin/cross-test-client/build.gradle.kts
+++ b/lib/kotlin/cross-test-client/build.gradle.kts
@@ -28,15 +28,26 @@
     mavenCentral()
 }
 
+val slf4jVersion: String by project
+val httpclientVersion: String by project
+val httpcoreVersion: String by project
+val logbackVersion: String by project
+val kotlinxCoroutinesJdk8Version: String by project
+
 dependencies {
     implementation(platform("org.jetbrains.kotlin:kotlin-bom"))
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
     // https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-jdk8
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:1.6.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:$kotlinxCoroutinesJdk8Version")
     // https://mvnrepository.com/artifact/org.apache.thrift/libthrift
     implementation("org.apache.thrift:libthrift:INCLUDED")
+    implementation("org.slf4j:slf4j-api:$slf4jVersion")
+    implementation("org.apache.httpcomponents:httpclient:$httpclientVersion")
+    implementation("org.apache.httpcomponents:httpcore:$httpcoreVersion")
     // https://mvnrepository.com/artifact/ch.qos.logback/logback-classic
-    implementation("ch.qos.logback:logback-classic:1.3.0-alpha14")
+    implementation("ch.qos.logback:logback-classic:$logbackVersion")
+    testImplementation("org.jetbrains.kotlin:kotlin-test")
+    testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
 }
 
 tasks {
diff --git a/lib/kotlin/cross-test-server/build.gradle.kts b/lib/kotlin/cross-test-server/build.gradle.kts
index 8a654d9..2246fae 100644
--- a/lib/kotlin/cross-test-server/build.gradle.kts
+++ b/lib/kotlin/cross-test-server/build.gradle.kts
@@ -28,15 +28,24 @@
     mavenCentral()
 }
 
+val slf4jVersion: String by project
+val httpcoreVersion: String by project
+val logbackVersion: String by project
+val kotlinxCoroutinesJdk8Version: String by project
+
 dependencies {
     implementation(platform("org.jetbrains.kotlin:kotlin-bom"))
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
     // https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-jdk8
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:1.6.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:$kotlinxCoroutinesJdk8Version")
     // https://mvnrepository.com/artifact/org.apache.thrift/libthrift
     implementation("org.apache.thrift:libthrift:INCLUDED")
+    implementation("org.slf4j:slf4j-api:$slf4jVersion")
+    implementation("org.apache.httpcomponents:httpcore:$httpcoreVersion")
     // https://mvnrepository.com/artifact/ch.qos.logback/logback-classic
-    implementation("ch.qos.logback:logback-classic:1.3.0-alpha14")
+    implementation("ch.qos.logback:logback-classic:$logbackVersion")
+    testImplementation("org.jetbrains.kotlin:kotlin-test")
+    testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
 }
 
 tasks {
diff --git a/lib/kotlin/gradle.properties b/lib/kotlin/gradle.properties
new file mode 100644
index 0000000..0cba9be
--- /dev/null
+++ b/lib/kotlin/gradle.properties
@@ -0,0 +1,23 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+#
+slf4jVersion=1.7.35
+httpcoreVersion=4.4.15
+httpclientVersion=4.5.13
+logbackVersion=1.3.0-alpha14
+kotlinxCoroutinesJdk8Version=1.6.1