diff --git a/.swift-version b/.swift-version
deleted file mode 100644
index a75b92f1e..000000000
--- a/.swift-version
+++ /dev/null
@@ -1 +0,0 @@
-5.1
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70082fa99..6befe93a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@
 
 #### Breaking
 
-* None.
+* SwiftLint now requires Swift 5.2 or higher to build.  
+  [JP Simard](https://github.com/jpsim)
 
 #### Experimental
 
diff --git a/SwiftLintFramework.podspec b/SwiftLintFramework.podspec
index 39d839f24..a9d52ed95 100644
--- a/SwiftLintFramework.podspec
+++ b/SwiftLintFramework.podspec
@@ -8,7 +8,7 @@ Pod::Spec.new do |s|
   s.author              = { 'JP Simard' => 'jp@jpsim.com' }
   s.platform            = :osx, '10.10'
   s.source_files        = 'Source/SwiftLintFramework/**/*.swift'
-  s.swift_versions      = ['5.1', '5.2']
+  s.swift_versions      = ['5.2', '5.3']
   s.pod_target_xcconfig = { 'APPLICATION_EXTENSION_API_ONLY' => 'YES' }
   s.dependency            'SourceKittenFramework', '~> 0.30.1'
   s.dependency            'Yams', '~> 4.0'
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index aeb253602..8daed1c09 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -8,8 +8,6 @@ jobs:
   strategy:
     maxParallel: 10
     matrix:
-      swift51:
-        containerImage: swift:5.1
       swift52:
         containerImage: swift:5.2
       swift53:
@@ -25,14 +23,6 @@ jobs:
   strategy:
     maxParallel: 10
     matrix:
-      xcode110:
-        DEVELOPER_DIR: /Applications/Xcode_11.app
-      xcode111:
-        DEVELOPER_DIR: /Applications/Xcode_11.1.app
-      xcode112:
-        DEVELOPER_DIR: /Applications/Xcode_11.2.1.app
-      xcode113:
-        DEVELOPER_DIR: /Applications/Xcode_11.3.1.app
       xcode114:
         DEVELOPER_DIR: /Applications/Xcode_11.4.app
       xcode115:
@@ -67,14 +57,6 @@ jobs:
   strategy:
     maxParallel: 10
     matrix:
-      xcode110:
-        DEVELOPER_DIR: /Applications/Xcode_11.app
-      xcode111:
-        DEVELOPER_DIR: /Applications/Xcode_11.1.app
-      xcode112:
-        DEVELOPER_DIR: /Applications/Xcode_11.2.1.app
-      xcode113:
-        DEVELOPER_DIR: /Applications/Xcode_11.3.1.app
       xcode114:
         DEVELOPER_DIR: /Applications/Xcode_11.4.app
       xcode115: