diff --git a/core/build.gradle.kts b/core/build.gradle.kts
index f502587..17e049a 100644
--- a/core/build.gradle.kts
+++ b/core/build.gradle.kts
@@ -11,6 +11,7 @@ plugins {
     alias(libs.plugins.dokka)
 
     id("maven-publish")
+    id("signing")
 }
 group = "io.github.boswelja.menuprovider"
 version = "1.0.2"
@@ -66,6 +67,13 @@ detekt {
     basePath = rootDir.absolutePath
 }
 
+signing {
+    val signingKey: String? by project
+    val signingPassword: String? by project
+    useInMemoryPgpKeys(signingKey, signingPassword)
+    sign(publishing.publications)
+}
+
 publishing {
     repositories {
         if (System.getenv("PUBLISHING") == "true") {
diff --git a/material3/build.gradle.kts b/material3/build.gradle.kts
index 0dce694..351c4e6 100644
--- a/material3/build.gradle.kts
+++ b/material3/build.gradle.kts
@@ -11,6 +11,7 @@ plugins {
     alias(libs.plugins.dokka)
 
     id("maven-publish")
+    id("signing")
 }
 
 group = "io.github.boswelja.menuprovider"
@@ -66,6 +67,13 @@ detekt {
     basePath = rootDir.absolutePath
 }
 
+signing {
+    val signingKey: String? by project
+    val signingPassword: String? by project
+    useInMemoryPgpKeys(signingKey, signingPassword)
+    sign(publishing.publications)
+}
+
 publishing {
     repositories {
         if (System.getenv("PUBLISHING") == "true") {