diff --git a/cobs/build.gradle.kts b/cobs/build.gradle.kts
index 37ab468..003414f 100644
--- a/cobs/build.gradle.kts
+++ b/cobs/build.gradle.kts
@@ -62,10 +62,10 @@ dependencies {
     // published AAR/POM gains NO runtime dependency: consumers who use the Flow API
     // already have kotlinx-coroutines on their classpath, and those who don't pay
     // nothing. The test source set needs it (and coroutines-test) at runtime.
-    compileOnly("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0")
+    compileOnly("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.11.0")
     testImplementation("junit:junit:4.13.2")
-    testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0")
-    testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.9.0")
+    testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.11.0")
+    testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.11.0")
 }
 
 publishing {