diff --git a/.swift-version b/.swift-version
deleted file mode 100644
index 819e07a2..00000000
--- a/.swift-version
+++ /dev/null
@@ -1 +0,0 @@
-5.0
diff --git a/.travis.yml b/.travis.yml
index edd0893e..3bf75bab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,15 +31,17 @@ jobs:
       language: generic
       os: linux
       dist: xenial
+      env:
+      - SWIFT_VERSION=5.0
       install:
-      - eval "$(curl -sL https://gist.githubusercontent.com/kylef/5c0475ff02b7c7671d2a/raw/9f442512a46d7a2af7b850d65a7e9bd31edfb09b/swiftenv-install.sh)"
+      - eval "$(curl -sL https://swiftenv.fuller.li/install.sh)"
       script:
       - Utils/ci-script-linux.sh
     - stage: deploy
       if: tag IS present
       language: generic
       os: osx
-      osx_image: xcode10.3
+      osx_image: xcode11.3
       env:
         secure: 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
       addons:
diff --git a/SWCompression.podspec b/SWCompression.podspec
index a5095884..78c0113a 100644
--- a/SWCompression.podspec
+++ b/SWCompression.podspec
@@ -20,7 +20,7 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target = "9.0"
   s.watchos.deployment_target = "2.0"
 
-  s.swift_version = "5.0"
+  s.swift_versions = ["4", "5"]
 
   s.dependency "BitByteData", "~> 1.4.1"
 
diff --git a/Utils/ci-before-deploy.sh b/Utils/ci-before-deploy.sh
index ed1c53df..67977edd 100755
--- a/Utils/ci-before-deploy.sh
+++ b/Utils/ci-before-deploy.sh
@@ -12,6 +12,5 @@ rm -rf Carthage/Checkouts
 (set +x; echo "=> Preparing deployment files.")
 carthage build --no-skip-current
 carthage archive SWCompression
-swift build
 sourcekitten doc --spm-module SWCompression > docs.json
 jazzy