diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 87ba3c853b..97f6dda9b2 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -3,7 +3,7 @@ androidx-compose = "1.7.6"
 compileSdk = "35"
 http4k = "4.48.0.0"
 kotlin = "2.1.0"
-kotlinx-coroutines = "1.9.0"
+kotlinx-coroutines = "1.10.0"
 kotlinx-serialization = "1.7.3"
 okHttp = "4.12.0"
 okio = "3.9.1"
diff --git a/zipline-testing/src/hostMain/kotlin/app/cash/zipline/testing/IoTestingCommon.kt b/zipline-testing/src/hostMain/kotlin/app/cash/zipline/testing/IoTestingCommon.kt
index 82fec43be7..6e1b5fdd25 100644
--- a/zipline-testing/src/hostMain/kotlin/app/cash/zipline/testing/IoTestingCommon.kt
+++ b/zipline-testing/src/hostMain/kotlin/app/cash/zipline/testing/IoTestingCommon.kt
@@ -39,7 +39,6 @@ fun Zipline.loadTestingJs() {
   // Load modules in topologically-sorted order. In production the zipline-manifest does this.
   loadJsModuleFromResource("./kotlin-kotlin-stdlib.js")
   loadJsModuleFromResource("./kotlinx-atomicfu.js")
-  loadJsModuleFromResource("./kotlin-kotlinx-atomicfu-runtime.js")
   loadJsModuleFromResource("./kotlinx-serialization-kotlinx-serialization-core.js")
   loadJsModuleFromResource("./kotlinx-serialization-kotlinx-serialization-json.js")
   loadJsModuleFromResource("./kotlinx-coroutines-core.js")