diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 2d4696c..91135ae 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -11,6 +11,7 @@ plugins {
 object Versions {
   const val jvmTarget = "11"
   const val kotlinTarget = "1.6"
+//  const val kotlin = "1.6.20-M1"
   const val kotlin = "1.6.10"
 
   const val gradleNodePlugin = "3.2.0"
@@ -66,6 +67,7 @@ tasks.withType<KotlinCompile>().configureEach {
   }
 
   kotlinOptions.freeCompilerArgs += listOf(
+//    "-Xcontext-receivers",
     "-opt-in=kotlin.RequiresOptIn",
     "-opt-in=kotlin.ExperimentalStdlibApi",
     "-opt-in=kotlin.time.ExperimentalTime",
diff --git a/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/common.kt b/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/common.kt
index 11e6b2b..63aa77a 100644
--- a/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/common.kt
+++ b/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/common.kt
@@ -18,7 +18,7 @@ object Versions {
 
   const val node = "14.19.0"
 
-  const val kotlinWrappers = "0.0.1-pre.294-kotlin-1.6.10"
+  const val kotlinWrappers = "0.0.1-pre.300-kotlin-1.6.10"
   const val junit = "5.8.2"
   const val kotest = "5.1.0"
   const val mockk = "1.12.1"
diff --git a/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/lang/kotlin-jvm.gradle.kts b/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/lang/kotlin-jvm.gradle.kts
index 342a119..4228ba7 100644
--- a/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/lang/kotlin-jvm.gradle.kts
+++ b/buildSrc/src/main/kotlin/dev/adamko/kafkatorio/lang/kotlin-jvm.gradle.kts
@@ -43,6 +43,7 @@ tasks.withType<KotlinCompile>().configureEach {
   }
 
   kotlinOptions.freeCompilerArgs += listOf(
+//    "-Xcontext-receivers",
     "-opt-in=kotlin.RequiresOptIn",
     "-opt-in=kotlin.ExperimentalStdlibApi",
     "-opt-in=kotlin.time.ExperimentalTime",
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index bd0d438..1295f7c 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,6 +6,7 @@
 
 ## compilation ##
 jvm        = "11"
+#kotlin     = "1.6.20-M1"
 kotlin     = "1.6.10"
 
 ## libs ##