diff --git a/build.gradle b/build.gradle
index 6232a1c..30f1065 100644
--- a/build.gradle
+++ b/build.gradle
@@ -77,6 +77,12 @@ tasks.withType(JavaCompile).configureEach {
 
 apply plugin: 'org.checkerframework'
 
+dependencies {
+  compileOnly 'io.github.eisop:checker-qual:3.28.0-eisop1'
+  testCompileOnly 'io.github.eisop:checker-qual:3.28.0-eisop1'
+  checkerFramework 'io.github.eisop:checker:3.28.0-eisop1'
+}
+
 checkerFramework {
   checkers = [
     // No need to run CalledMethodsChecker, because ResourceLeakChecker does so.