diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7044bdb..54af706 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,13 @@
 
 -----
 
-## [1.4.1](https://github.com/EFPrefix/EFFoundation/releases/tag/1.4.0) (2020-05-28)
+## [1.4.2](https://github.com/EFPrefix/EFFoundation/releases/tag/1.4.2) (2020-05-29)
+
+* Update deployment_target.
+
+---
+
+## [1.4.1](https://github.com/EFPrefix/EFFoundation/releases/tag/1.4.1) (2020-05-28)
 
 * Update dependency.
 
diff --git a/EFFoundation.podspec b/EFFoundation.podspec
index 1557a9f..2e0a962 100644
--- a/EFFoundation.podspec
+++ b/EFFoundation.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'EFFoundation'
-  s.version          = '1.4.1'
+  s.version          = '1.4.2'
   s.summary          = 'EFFoundation.'
   
   s.description      = <<-DESC
@@ -39,7 +39,7 @@ Pod::Spec.new do |s|
   end
   
   s.subspec 'Device' do |device|
-    device.ios.deployment_target = '8.0'
+    device.ios.deployment_target = '9.3'
     
     device.source_files = 'EFFoundation/Device/*.{h,swift}'
     device.dependency 'EFFoundation/Core'
@@ -55,7 +55,7 @@ Pod::Spec.new do |s|
   end
   
   s.subspec 'Complete' do |complete|
-    complete.ios.deployment_target = '8.0'
+    complete.ios.deployment_target = '9.3'
 
     complete.dependency 'EFFoundation/Core'
     complete.dependency 'EFFoundation/Attributes'
diff --git a/Example/Podfile.lock b/Example/Podfile.lock
index 95268a6..d33bbe1 100644
--- a/Example/Podfile.lock
+++ b/Example/Podfile.lock
@@ -1,18 +1,18 @@
 PODS:
   - DeviceKit (3.2.0)
-  - EFFoundation/Attributes (1.4.1):
+  - EFFoundation/Attributes (1.4.2):
     - EFFoundation/Core
     - SwiftyAttributes (>= 5.1.1)
-  - EFFoundation/Complete (1.4.1):
+  - EFFoundation/Complete (1.4.2):
     - EFFoundation/Attributes
     - EFFoundation/Core
     - EFFoundation/Device
     - EFFoundation/Reachability
-  - EFFoundation/Core (1.4.1)
-  - EFFoundation/Device (1.4.1):
+  - EFFoundation/Core (1.4.2)
+  - EFFoundation/Device (1.4.2):
     - DeviceKit (>= 3.2.0)
     - EFFoundation/Core
-  - EFFoundation/Reachability (1.4.1):
+  - EFFoundation/Reachability (1.4.2):
     - EFFoundation/Core
     - ReachabilitySwift (~> 5.0.0)
   - ReachabilitySwift (5.0.0)
@@ -33,7 +33,7 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   DeviceKit: d081659419cce07c0b5239dbc9fb39ed7413c7fe
-  EFFoundation: cc74b03283ead369c1c7647638419eec8b135e18
+  EFFoundation: 904d66f37ae0446f40313ccf49ffbea348826d79
   ReachabilitySwift: 985039c6f7b23a1da463388634119492ff86c825
   SwiftyAttributes: e3e13891ddac3c62b3d7798d5c3969cea88e62bb
 
diff --git a/README.md b/README.md
index 3b7b3e1..944b330 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To run the example project, clone the repo, and run `pod install` from the Examp
 
 - Xcode 10.2+
 - Swift 5.0+
-- iOS 8.0+
+- iOS 9.3+
 
 ## Installation