diff --git a/Cartfile b/Cartfile
index 23b1c58..e1d501d 100644
--- a/Cartfile
+++ b/Cartfile
@@ -1,2 +1,2 @@
-github "leanplum/leanplum-ios-sdk" ~> 4.1
+github "leanplum/leanplum-ios-sdk" ~> 6.1
 github "mparticle/mparticle-apple-sdk" ~> 8.0
diff --git a/Package.swift b/Package.swift
index 3684d1a..1da356e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,7 +15,7 @@ let package = Package(
                .upToNextMajor(from: "8.7.0")),
       .package(name: "Leanplum",
                url: "https://github.com/leanplum/leanplum-ios-sdk",
-               .upToNextMajor(from: "4.1.0")),
+               .upToNextMajor(from: "6.1.0")),
     ],
     targets: [
         .target(
diff --git a/mParticle-Leanplum.podspec b/mParticle-Leanplum.podspec
index 72e0813..61ebd40 100755
--- a/mParticle-Leanplum.podspec
+++ b/mParticle-Leanplum.podspec
@@ -16,7 +16,7 @@ Pod::Spec.new do |s|
     s.ios.deployment_target = "9.0"
     s.ios.source_files      = 'mParticle-Leanplum/*.{h,m,mm}'
     s.ios.dependency 'mParticle-Apple-SDK/mParticle', '~> 8.0'
-    s.ios.dependency 'Leanplum-iOS-SDK', '~> 4.1'
+    s.ios.dependency 'Leanplum-iOS-SDK', '~> 6.1'
     s.ios.frameworks = 'CFNetwork', 'SystemConfiguration', 'Security', 'CoreLocation', 'StoreKit'
     s.ios.weak_frameworks = 'AdSupport'
     s.ios.pod_target_xcconfig = {