diff --git a/build.gradle b/build.gradle
index fc27093..77cead8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -165,11 +165,11 @@ uploadArchives {
       beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
 
       repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
-        authentication(userName: ossrhUsername, password: ossrhPassword)
+        authentication(userName: findProperty('ossrhUsername'), password: findProperty('ossrhPassword'))
       }
 
       snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
-        authentication(userName: ossrhUsername, password: ossrhPassword)
+        authentication(userName: findProperty('ossrhUsername'), password: findProperty('ossrhPassword'))
       }
 
       // Only preserve the compile and non-SWT POM dependencies