diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 7cdfe17bbc4..831e18ae9ff 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -179,7 +179,7 @@ jobs:
       - name: jvmTest (K2 enabled)
         uses: gradle/gradle-build-action@v2
         with:
-          arguments: "jvmTest -Pkotlin_version=2.0.0-dev-5387 -Pkotlin_repo_url=https://maven.pkg.jetbrains.space/kotlin/p/kotlin/bootstrap -Pkotlin_language_version=2.0"
+          arguments: "jvmTest -Pkotlin_version=2.0.0-dev-6573 -Pkotlin_repo_url=https://maven.pkg.jetbrains.space/kotlin/p/kotlin/bootstrap -Pkotlin_language_version=2.0 -Pkotlin_api_version=2.0"
 
       - name: Upload reports
         if: failure()
diff --git a/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/IterableTest.kt b/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/IterableTest.kt
index 7a1fe712366..06880e53fa7 100644
--- a/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/IterableTest.kt
+++ b/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/IterableTest.kt
@@ -1,3 +1,5 @@
+@file:Suppress("DUPLICATE_PARAMETER_NAME_IN_FUNCTION_TYPE")
+
 package arrow.core
 
 import arrow.core.test.either
diff --git a/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/SequenceKTest.kt b/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/SequenceKTest.kt
index e7a315b4ed3..f6ff9ec73aa 100644
--- a/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/SequenceKTest.kt
+++ b/arrow-libs/core/arrow-core/src/commonTest/kotlin/arrow/core/SequenceKTest.kt
@@ -1,3 +1,5 @@
+@file:Suppress("DUPLICATE_PARAMETER_NAME_IN_FUNCTION_TYPE")
+
 package arrow.core
 
 import arrow.core.test.laws.MonoidLaws
diff --git a/arrow-libs/fx/arrow-fx-coroutines/src/commonMain/kotlin/arrow/fx/coroutines/CircuitBreaker.kt b/arrow-libs/fx/arrow-fx-coroutines/src/commonMain/kotlin/arrow/fx/coroutines/CircuitBreaker.kt
index 3395f32f401..ec07859b4a4 100644
--- a/arrow-libs/fx/arrow-fx-coroutines/src/commonMain/kotlin/arrow/fx/coroutines/CircuitBreaker.kt
+++ b/arrow-libs/fx/arrow-fx-coroutines/src/commonMain/kotlin/arrow/fx/coroutines/CircuitBreaker.kt
@@ -621,26 +621,31 @@ private constructor(
       onClosed: suspend () -> Unit = { },
       onHalfOpen: suspend () -> Unit = { },
       onOpen: suspend () -> Unit = { },
-    ): CircuitBreaker =
-      CircuitBreaker(
+    ): CircuitBreaker {
+      require(maxFailures >= 0) {
+        "maxFailures expected to be greater than or equal to 0, but was $maxFailures"
+      }
+      require(resetTimeoutNanos > 0) {
+        "resetTimeout expected to be greater than 0, but was $resetTimeoutNanos"
+      }
+      require(exponentialBackoffFactor > 0) {
+        "exponentialBackoffFactor expected to be greater than 0, but was $exponentialBackoffFactor"
+      }
+      require(maxResetTimeoutNanos > 0) {
+        "maxResetTimeout expected to be greater than 0, but was $maxResetTimeoutNanos"
+      }
+      return CircuitBreaker(
         state = AtomicRef(Closed(0)),
-        maxFailures = maxFailures
-          .takeIf { it >= 0 }
-          .let { requireNotNull(it) { "maxFailures expected to be greater than or equal to 0, but was $maxFailures" } },
-        resetTimeoutNanos = resetTimeoutNanos
-          .takeIf { it > 0 }
-          .let { requireNotNull(it) { "resetTimeout expected to be greater than 0, but was $resetTimeoutNanos" } },
-        exponentialBackoffFactor = exponentialBackoffFactor
-          .takeIf { it > 0 }
-          .let { requireNotNull(it) { "exponentialBackoffFactor expected to be greater than 0, but was $exponentialBackoffFactor" } },
-        maxResetTimeoutNanos = maxResetTimeoutNanos
-          .takeIf { it > 0 }
-          .let { requireNotNull(it) { "maxResetTimeout expected to be greater than 0, but was $maxResetTimeoutNanos" } },
+        maxFailures = maxFailures,
+        resetTimeoutNanos = resetTimeoutNanos,
+        exponentialBackoffFactor = exponentialBackoffFactor,
+        maxResetTimeoutNanos = maxResetTimeoutNanos,
         onRejected = onRejected,
         onClosed = onClosed,
         onHalfOpen = onHalfOpen,
         onOpen = onOpen
       )
+    }
 
     /**
      * Attempts to create a [CircuitBreaker].
@@ -682,20 +687,10 @@ private constructor(
       onOpen: suspend () -> Unit = suspend { },
     ): CircuitBreaker =
       of(
-        maxFailures = maxFailures
-          .takeIf { it >= 0 }
-          .let { requireNotNull(it) { "maxFailures expected to be greater than or equal to 0, but was $maxFailures" } },
-        resetTimeoutNanos = resetTimeout
-          .takeIf { it.isPositive() && it != Duration.ZERO }
-          .let { requireNotNull(it) { "resetTimeout expected to be greater than ${Duration.ZERO}, but was $resetTimeout" } }
-          .toDouble(DurationUnit.NANOSECONDS),
-        exponentialBackoffFactor = exponentialBackoffFactor
-          .takeIf { it > 0 }
-          .let { requireNotNull(it) { "exponentialBackoffFactor expected to be greater than 0, but was $exponentialBackoffFactor" } },
-        maxResetTimeoutNanos = maxResetTimeout
-          .takeIf { it.isPositive() && it != Duration.ZERO }
-          .let { requireNotNull(it) { "maxResetTimeout expected to be greater than ${Duration.ZERO}, but was $maxResetTimeout" } }
-          .toDouble(DurationUnit.NANOSECONDS),
+        maxFailures = maxFailures,
+        resetTimeoutNanos = resetTimeout.toDouble(DurationUnit.NANOSECONDS),
+        exponentialBackoffFactor = exponentialBackoffFactor,
+        maxResetTimeoutNanos = maxResetTimeout.toDouble(DurationUnit.NANOSECONDS),
         onRejected = onRejected,
         onClosed = onClosed,
         onHalfOpen = onHalfOpen,
diff --git a/arrow-libs/resilience/arrow-resilience/src/commonMain/kotlin/arrow/resilience/CircuitBreaker.kt b/arrow-libs/resilience/arrow-resilience/src/commonMain/kotlin/arrow/resilience/CircuitBreaker.kt
index e56372e3285..e348f127c4c 100644
--- a/arrow-libs/resilience/arrow-resilience/src/commonMain/kotlin/arrow/resilience/CircuitBreaker.kt
+++ b/arrow-libs/resilience/arrow-resilience/src/commonMain/kotlin/arrow/resilience/CircuitBreaker.kt
@@ -520,24 +520,28 @@ private constructor(
       onClosed: suspend () -> Unit = suspend { },
       onHalfOpen: suspend () -> Unit = suspend { },
       onOpen: suspend () -> Unit = suspend { }
-    ): CircuitBreaker =
-      CircuitBreaker(
+    ): CircuitBreaker {
+      require(resetTimeout > Duration.ZERO) {
+        "resetTimeout expected to be greater than ${Duration.ZERO}, but was $resetTimeout"
+      }
+      require(exponentialBackoffFactor > 0) {
+        "exponentialBackoffFactor expected to be greater than 0, but was $exponentialBackoffFactor"
+      }
+      require(maxResetTimeout > Duration.ZERO) {
+        "maxResetTimeout expected to be greater than ${Duration.ZERO}, but was $maxResetTimeout"
+      }
+      return CircuitBreaker(
         state = AtomicRef(Closed(openingStrategy)),
-        resetTimeout = resetTimeout
-          .takeIf { it.isPositive() && it != Duration.ZERO }
-          .let { requireNotNull(it) { "resetTimeout expected to be greater than ${Duration.ZERO}, but was $resetTimeout" } },
-        exponentialBackoffFactor = exponentialBackoffFactor
-          .takeIf { it > 0 }
-          .let { requireNotNull(it) { "exponentialBackoffFactor expected to be greater than 0, but was $exponentialBackoffFactor" } },
-        maxResetTimeout = maxResetTimeout
-          .takeIf { it.isPositive() && it != Duration.ZERO }
-          .let { requireNotNull(it) { "maxResetTimeout expected to be greater than ${Duration.ZERO}, but was $maxResetTimeout" } },
+        resetTimeout = resetTimeout,
+        exponentialBackoffFactor = exponentialBackoffFactor,
+        maxResetTimeout = maxResetTimeout,
         timeSource = timeSource,
         onRejected = onRejected,
         onClosed = onClosed,
         onHalfOpen = onHalfOpen,
         onOpen = onOpen
       )
+    }
   }
 
   public sealed class OpeningStrategy {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index b3a0cc1b9e4..b368df8aa8d 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -8,15 +8,15 @@ dokka = "1.9.10"
 jUnit = "4.13.2"
 jUnitJupiter = "5.10.0"
 jUnitVintage = "5.10.0"
-kotest = "5.7.2"
-kotestGradle = "5.7.2"
+kotest = "5.8.0"
+kotestGradle = "5.8.0"
 kover = "0.7.4"
-kotlin = "1.9.10"
-kotlinxSerializationPlugin = "1.9.10"
+kotlin = "1.9.20"
+kotlinxSerializationPlugin = "1.9.20"
 kotlinBinaryCompatibilityValidator = "0.13.2"
 kotlinCompileTesting = "1.5.0"
 knit = "0.4.0"
-kspVersion = "1.9.10-1.0.13"
+kspVersion = "1.9.20-1.0.14"
 kotlinxSerialization = "1.6.0"
 mockWebServer = "4.12.0"
 retrofit = "2.9.0"