diff --git a/Cartfile b/Cartfile
index 01a604350..e95b91f55 100644
--- a/Cartfile
+++ b/Cartfile
@@ -3,6 +3,7 @@ github "realm/realm-cocoa"
 github "onevcat/Kingfisher"
 github "tid-kijyun/Kanna"
 github "Alamofire/Alamofire"
+github "ReactiveX/RxSwift"
 github "nixzhu/Navi"
 github "nixzhu/KeyboardMan"
 github "nixzhu/Ruler"
diff --git a/Cartfile.resolved b/Cartfile.resolved
index a6a0daf23..544ed01f7 100644
--- a/Cartfile.resolved
+++ b/Cartfile.resolved
@@ -5,5 +5,6 @@ github "onevcat/Kingfisher" "2.4.2"
 github "nixzhu/MonkeyKing" "0.0.2"
 github "nixzhu/Proposer" "0.9.0"
 github "nixzhu/Ruler" "0.7.1"
+github "ReactiveX/RxSwift" "2.6.0"
 github "realm/realm-cocoa" "v1.0.2"
 github "nixzhu/Navi" "0.4.4"