diff --git a/jvm/gradle.properties b/jvm/gradle.properties
index b590797e..e040b8e9 100644
--- a/jvm/gradle.properties
+++ b/jvm/gradle.properties
@@ -10,4 +10,4 @@ ver_OKIO=3.9.0
 ver_KOTLIN_TEST=2.0.0
 ver_KOTLIN_SERIALIZATION=1.6.3
 # Kotest 5.4.0 is the oldest that we support
-ver_KOTEST=5.4.0
\ No newline at end of file
+ver_KOTEST=5.9.1
\ No newline at end of file