diff --git a/epublib/build.gradle b/epublib/build.gradle
index af91ae7ed..67a66f5ad 100644
--- a/epublib/build.gradle
+++ b/epublib/build.gradle
@@ -33,5 +33,5 @@ android {
 }
 
 dependencies {
-    implementation "androidx.annotation:annotation:1.3.0"
+    implementation "androidx.annotation:annotation:1.4.0"
 }
\ No newline at end of file