diff --git a/keycard/build.gradle b/keycard/build.gradle
index e946c47..f67a631 100644
--- a/keycard/build.gradle
+++ b/keycard/build.gradle
@@ -60,7 +60,7 @@ dependencies {
 
     implementation "com.github.komputing:khex:$khex_version"
 
-    implementation 'com.squareup.okio:okio:2.10.0'
+    implementation 'com.squareup.okio:okio:3.3.0'
 
     implementation 'com.payneteasy:ber-tlv:1.0-11'