diff --git a/version.gradle b/version.gradle
index 752648d..5706ce3 100644
--- a/version.gradle
+++ b/version.gradle
@@ -13,6 +13,7 @@ allprojects {
         jsrVersion = '3.0.2'
         slf4jVersion = '1.7.36'
         logbackVersion = '1.2.11'
+        mockitoVersion = '4.5.1'
         pgpainlessVersion = '1.2.0'
         certStoreVersion = '0.1.0'
         zbase32Version = '1.0.0'
diff --git a/wkd-java-cli/build.gradle b/wkd-java-cli/build.gradle
index 40458b3..ed44eff 100644
--- a/wkd-java-cli/build.gradle
+++ b/wkd-java-cli/build.gradle
@@ -19,7 +19,7 @@ dependencies {
 
     // https://todd.ginsberg.com/post/testing-system-exit/
     testImplementation "com.ginsberg:junit5-system-exit:$junitSysExitVersion"
-    testImplementation 'org.mockito:mockito-core:4.3.1'
+    testImplementation "org.mockito:mockito-core:$mockitoVersion"
 
     implementation("org.pgpainless:pgpainless-cert-d:0.1.1")
     implementation project(':wkd-java')