diff --git a/semanticdb-kotlinc/build.gradle.kts b/semanticdb-kotlinc/build.gradle.kts
index bae3a63..4223beb 100644
--- a/semanticdb-kotlinc/build.gradle.kts
+++ b/semanticdb-kotlinc/build.gradle.kts
@@ -34,7 +34,7 @@ dependencies {
 
     testImplementation(kotlin("compiler-embeddable"))
     testImplementation(kotlin("test"))
-    testImplementation("io.kotest", "kotest-assertions-core", "4.6.3")
+    testImplementation("io.kotest", "kotest-assertions-core", "5.9.0")
 
     // Unable to use com.github.tschuchortdev:kotlin-compile-testing until 1.9.x support is fixed
     //   https://github.com/tschuchortdev/kotlin-compile-testing/issues/390