diff --git a/org.thepalaceproject.drm.core.tests/build.gradle.kts b/org.thepalaceproject.drm.core.tests/build.gradle.kts
index 5eb10cb..65add3d 100644
--- a/org.thepalaceproject.drm.core.tests/build.gradle.kts
+++ b/org.thepalaceproject.drm.core.tests/build.gradle.kts
@@ -1,4 +1,6 @@
 dependencies {
+    coreLibraryDesugaring(libs.android.desugaring)
+
     implementation(project(":org.thepalaceproject.drm.core"))
     implementation(libs.slf4j)
     implementation(libs.junit)
diff --git a/org.thepalaceproject.drm.core/build.gradle.kts b/org.thepalaceproject.drm.core/build.gradle.kts
index c5bcf63..d928d37 100644
--- a/org.thepalaceproject.drm.core/build.gradle.kts
+++ b/org.thepalaceproject.drm.core/build.gradle.kts
@@ -1,4 +1,6 @@
 dependencies {
+    coreLibraryDesugaring(libs.android.desugaring)
+
     implementation(libs.androidx.core.ktx)
     implementation(libs.io7m.junreachable)
     implementation(libs.kotlin.stdlib)