diff --git a/build.gradle.kts b/build.gradle.kts
index 09bf99a..0300207 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -40,6 +40,15 @@ tasks.withType<KotlinCompile> {
     kotlinOptions.freeCompilerArgs = listOf("-Xopt-in=kotlin.RequiresOptIn")
 }
 
+signing {
+    useInMemoryPgpKeys(
+        findProperty("signingKey").toString(),
+        findProperty("signingPassword").toString()
+    )
+
+    sign(publishing.publications)
+}
+
 publishing {
     publications {
         create<MavenPublication>("ktor-onelogin-saml") {
@@ -75,15 +84,6 @@ publishing {
     }
 }
 
-signing {
-    val secretKey = providers.environmentVariable("SIGNING_KEY")
-    val signingPassword = providers.environmentVariable("SIGNING_PASSWORD")
-    if (secretKey.isPresent && signingPassword.isPresent)
-        useInMemoryPgpKeys(secretKey.get(), signingPassword.get())
-
-    sign(publishing.publications)
-}
-
 nexusPublishing {
     repositories {
         sonatype {