diff --git a/sigstore-java/build.gradle.kts b/sigstore-java/build.gradle.kts
index d7f8d8bf..5a2b69fe 100644
--- a/sigstore-java/build.gradle.kts
+++ b/sigstore-java/build.gradle.kts
@@ -51,7 +51,7 @@ dependencies {
     testImplementation("org.mockito:mockito-junit-jupiter")
 
     testImplementation("no.nav.security:mock-oauth2-server:5.0.2")
-    testImplementation("com.squareup.okhttp3:mockwebserver:5.4.0")
+    testImplementation("com.squareup.okhttp3:mockwebserver:5.5.0")
     testImplementation("net.sourceforge.htmlunit:htmlunit:2.70.0")
 
     testImplementation("io.github.netmikey.logunit:logunit-core:2.0.0")