diff --git a/external-sop/build.gradle b/external-sop/build.gradle
index acd55f6..dea3c3d 100644
--- a/external-sop/build.gradle
+++ b/external-sop/build.gradle
@@ -25,7 +25,7 @@ dependencies {
     implementation "com.google.code.findbugs:jsr305:$jsrVersion"
 
     // The ExternalTestSubjectFactory reads json config file to find configured SOP binaries...
-    testImplementation "com.google.code.gson:gson:2.10.1"
+    testImplementation "com.google.code.gson:gson:$gsonVersion"
     // ...and extends TestSubjectFactory
     testImplementation(testFixtures(project(":sop-java")))
 }
diff --git a/version.gradle b/version.gradle
index d956fc9..cf81177 100644
--- a/version.gradle
+++ b/version.gradle
@@ -8,6 +8,7 @@ allprojects {
         isSnapshot = true
         minAndroidSdk = 10
         javaSourceCompatibility = 1.8
+        gsonVersion = '2.10.1'
         jsrVersion = '3.0.2'
         junitVersion = '5.8.2'
         junitSysExitVersion = '1.1.2'