diff --git a/build.gradle.kts b/build.gradle.kts
index 32bc50f0..903fdce1 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,3 @@
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-
 plugins {
     kotlin("jvm") version "1.5.0" apply false
     kotlin("kapt") version "1.5.0" apply false
@@ -8,26 +6,16 @@ plugins {
     id("io.gitlab.arturbosch.detekt") version "1.16.0"
 }
 allprojects {
-    @Suppress("DEPRECATION")
     repositories {
         mavenCentral()
-        mavenLocal()
         maven("https://jitpack.io")
         maven("https://maven.google.com/")
-        jcenter()
+        maven("https://maven.pkg.jetbrains.space/public/p/kotlinx-html/maven")
     }
 }
 subprojects {
     group = "com.github.cs125-illinois.jeed"
     version = "2021.5.1"
-    tasks.withType<KotlinCompile> {
-        val javaVersion = JavaVersion.VERSION_1_8.toString()
-        sourceCompatibility = javaVersion
-        targetCompatibility = javaVersion
-        kotlinOptions {
-            jvmTarget = javaVersion
-        }
-    }
     tasks.withType<Test> {
         enableAssertions = true
     }
@@ -41,17 +29,11 @@ subprojects {
     }
 }
 tasks.dependencyUpdates {
-    resolutionStrategy {
-        componentSelection {
-            all {
-                if (listOf("alpha", "beta", "rc", "cr", "m", "preview", "b", "ea", "eap", "release").any { qualifier ->
-                        candidate.version.matches(Regex("(?i).*[.-]$qualifier[.\\d-+]*"))
-                    }) {
-                    reject("Release candidate")
-                }
-            }
-        }
-    }
+    fun String.isNonStable() = !(
+        listOf("RELEASE", "FINAL", "GA").any { toUpperCase().contains(it) }
+            || "^[0-9,.v-]+(-r)?$".toRegex().matches(this)
+        )
+    rejectVersionIf { candidate.version.isNonStable() }
     gradleReleaseChannel = "current"
 }
 detekt {
diff --git a/core/src/test/kotlin/TestKompile.kt b/core/src/test/kotlin/TestKompile.kt
index bfe7e1db..36079585 100644
--- a/core/src/test/kotlin/TestKompile.kt
+++ b/core/src/test/kotlin/TestKompile.kt
@@ -17,15 +17,6 @@ class TestKompile : StringSpec({
         compiledSource should haveDefinedExactlyTheseClasses(setOf("TestKt"))
         compiledSource should haveProvidedThisManyClasses(0)
     }
-    "should compile simple lists" {
-        val executionResult = Source.fromKotlin(
-            """
- val list = listOf<String>()
-        """.trim()
-        ).kompile().execute()
-
-        println(executionResult.sandboxedClassLoader!!.loadedClasses)
-    }
     "should compile simple classes" {
         val compiledSource = Source(
             mapOf(
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index f371643e..e5338d37 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/server/build.gradle.kts b/server/build.gradle.kts
index 30c7bade..08a86f71 100644
--- a/server/build.gradle.kts
+++ b/server/build.gradle.kts
@@ -29,7 +29,7 @@ dependencies {
     implementation("com.uchuhimo:konf-yaml:1.1.2")
     implementation("io.github.microutils:kotlin-logging:2.0.6")
     implementation("com.google.api-client:google-api-client:1.31.4")
-    implementation("com.github.cs125-illinois.libcs1:libcs1:2021.4.1")
+    implementation("com.github.cs125-illinois:libcs1:2021.5.1")
 
     testImplementation("io.kotest:kotest-runner-junit5:4.5.0")
     testImplementation("io.kotest:kotest-assertions-ktor:4.4.3")