diff --git a/sigstore-java/build.gradle.kts b/sigstore-java/build.gradle.kts
index 9cba510d..ad614170 100644
--- a/sigstore-java/build.gradle.kts
+++ b/sigstore-java/build.gradle.kts
@@ -52,7 +52,7 @@ dependencies {
     testImplementation("org.mockito:mockito-core")
     testImplementation("org.mockito:mockito-junit-jupiter")
 
-    testImplementation("no.nav.security:mock-oauth2-server:0.5.10")
+    testImplementation("no.nav.security:mock-oauth2-server:2.1.9")
     testImplementation("com.squareup.okhttp3:mockwebserver:4.12.0")
     testImplementation("net.sourceforge.htmlunit:htmlunit:2.70.0")
     testImplementation("org.eclipse.jetty:jetty-server:11.0.22")