diff --git a/version.gradle b/version.gradle
index e8b82d7..ca45aed 100644
--- a/version.gradle
+++ b/version.gradle
@@ -8,6 +8,7 @@ allprojects {
         isSnapshot = true
         minAndroidSdk = 10
         javaSourceCompatibility = 1.8
+        bouncycastleVersion = '1.71'
         junitVersion = '5.8.2'
         slf4jVersion = '1.7.36'
         logbackVersion = '1.2.11'
diff --git a/vks-java/build.gradle b/vks-java/build.gradle
index b78415d..d3cc1c8 100644
--- a/vks-java/build.gradle
+++ b/vks-java/build.gradle
@@ -18,7 +18,7 @@ dependencies {
     testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junitVersion"
 
     // Arrays.areEqual, Base64...
-    implementation("org.bouncycastle:bcutil-jdk15to18:1.71")
+    implementation "org.bouncycastle:bcutil-jdk15to18:$bouncycastleVersion"
 
     // @Nonnull, @Nullable...
     implementation "com.google.code.findbugs:jsr305:3.0.2"