diff --git a/build.gradle b/build.gradle
index 8b4272b7..076f804a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -175,7 +175,7 @@ dependencies {
     implementation "org.opensearch:common-utils:${common_utils_version}"
     implementation "com.amazonaws:aws-encryption-sdk-java:3.0.1"
     implementation "software.amazon.cryptography:aws-cryptographic-material-providers:1.7.0"
-    implementation "org.dafny:DafnyRuntime:4.8.1"
+    implementation "org.dafny:DafnyRuntime:4.9.0"
     implementation "software.amazon.smithy.dafny:conversion:0.1.1"
     implementation 'org.bouncycastle:bcprov-jdk18on:1.79'
     api "org.apache.httpcomponents.core5:httpcore5:5.3.1"