diff --git a/app/build.gradle b/app/build.gradle
index 504386f..c851977 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,7 +45,7 @@ dependencies {
     implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.3'
     implementation 'com.google.code.gson:gson:2.9.0'
     implementation 'com.squareup.okhttp3:logging-interceptor:5.0.0-alpha.3'
-    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.4.0'
+    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.9.0'
     implementation 'io.reactivex.rxjava2:rxjava:2.2.21'
     implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
     implementation 'com.google.android.gms:play-services-auth:20.4.1'