diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index e6945d4..23858ac 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,6 +6,7 @@ agp = "8.3.0"
 kotlin = "1.9.22"
 versions = "0.51.0"
 compose-multiplatform = "1.6.0"
+androidx-annotation = "1.7.1"
 androidx-core-ktx = "1.12.0"
 androidx-appcompat = "1.6.1"
 androidx-lifecycle = "2.7.0"
@@ -19,18 +20,19 @@ dokka = "1.9.10"
 publish = "0.27.0"
 colormath = "3.4.0"
 poko = "0.15.2"
+errorProneAnnotations = "2.25.0"
+kotest = "5.8.0"
 
 [libraries]
+androidx-annotation = { module = "androidx.annotation:annotation", version.ref = "androidx-annotation" }
 androidx-core = { group = "androidx.core", name = "core-ktx", version.ref = "androidx-core-ktx" }
 androidx-lifecycle = { group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "androidx-lifecycle" }
-androidx-lifecycle-compose = { group = "androidx.lifecycle", name = "lifecycle-runtime-compose", version.ref = "androidx-lifecycle" }
 androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "androidx-appcompat" }
 androidx-activityCompose = { module = "androidx.activity:activity-compose", version.ref = "androidx-activityCompose" }
 colormath = { module = "com.github.ajalt.colormath:colormath", version.ref = "colormath" }
 compose-uitooling = { module = "androidx.compose.ui:ui-tooling", version.ref = "compose-uitooling" }
-junit = { group = "junit", name = "junit", version.ref = "junit" }
-androidx-test-ext-junit = { group = "androidx.test.ext", name = "junit", version.ref = "androidx-test-ext-junit" }
-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espresso-core" }
+errorProneAnnotations = { module = "com.google.errorprone:error_prone_annotations", version.ref = "errorProneAnnotations" }
+kotest-assertions = { module = "io.kotest:kotest-assertions-core", version.ref = "kotest" }
 
 [plugins]
 multiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
diff --git a/mcu-upstream/build.gradle.kts b/mcu-upstream/build.gradle.kts
index 682c530..3427249 100644
--- a/mcu-upstream/build.gradle.kts
+++ b/mcu-upstream/build.gradle.kts
@@ -14,12 +14,12 @@ kotlin {
 }
 
 dependencies {
-    implementation("androidx.annotation:annotation:1.7.1")
-    implementation("com.google.errorprone:error_prone_annotations:2.25.0")
+    implementation(libs.androidx.annotation)
+    implementation(libs.errorProneAnnotations)
+
     testImplementation(kotlin("test"))
-    testImplementation("io.kotest:kotest-assertions-core:5.8.0")
-//    testImplementation("io.kotest:kotest-assertions-collections:5.8.0")
     testImplementation(project(":material-color-utilities"))
+    testImplementation(libs.kotest.assertions)
 }
 
 tasks.test {