diff --git a/__tests__/extensions.test.ts b/__tests__/extensions.test.ts
index c5bf0110..6c77f56b 100644
--- a/__tests__/extensions.test.ts
+++ b/__tests__/extensions.test.ts
@@ -40,10 +40,10 @@ describe('Extension tests', () => {
       'linux'
     );
     expect(linux).toContain(
-      'sudo DEBIAN_FRONTEND=noninteractive apt install -y php7.2-xdebug'
+      'sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php7.2-xdebug'
     );
     expect(linux).toContain(
-      'sudo DEBIAN_FRONTEND=noninteractive apt install -y php7.2-pcov'
+      'sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php7.2-pcov'
     );
 
     linux = await extensions.addExtension('xdebug, pcov', '7.4', 'linux');
diff --git a/lib/extensions.js b/lib/extensions.js
index 0ba1cdeb..d56f0a47 100644
--- a/lib/extensions.js
+++ b/lib/extensions.js
@@ -172,7 +172,7 @@ function addExtensionLinux(extension_csv, version) {
                         break;
                     default:
                         install_command =
-                            'sudo DEBIAN_FRONTEND=noninteractive apt install -y php' +
+                            'sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php' +
                                 version +
                                 '-' +
                                 extension +
diff --git a/src/extensions.ts b/src/extensions.ts
index 9c3d2a4a..032c3fbf 100644
--- a/src/extensions.ts
+++ b/src/extensions.ts
@@ -165,7 +165,7 @@ export async function addExtensionLinux(
         break;
       default:
         install_command =
-          'sudo DEBIAN_FRONTEND=noninteractive apt install -y php' +
+          'sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php' +
           version +
           '-' +
           extension +
diff --git a/src/scripts/linux.sh b/src/scripts/linux.sh
index f825e7c4..7bd046fa 100644
--- a/src/scripts/linux.sh
+++ b/src/scripts/linux.sh
@@ -23,11 +23,10 @@ step_log "Setup PHP and Composer"
 if [ "$existing_version" != "$1" ]; then
 	if [ ! -e "/usr/bin/php$1" ]; then
 		sudo DEBIAN_FRONTEND=noninteractive add-apt-repository ppa:ondrej/php -y >/dev/null 2>&1
-		sudo DEBIAN_FRONTEND=noninteractive apt update -y >/dev/null 2>&1
 		if [ "$1" != "7.4" ]; then
-		  sudo DEBIAN_FRONTEND=noninteractive apt install -y php"$1" curl php"$1"-curl >/dev/null 2>&1
+		  sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php"$1" curl php"$1"-curl >/dev/null 2>&1
 		else
-		  sudo DEBIAN_FRONTEND=noninteractive apt install -y php"$1" php"$1"-dev curl php"$1"-curl >/dev/null 2>&1
+		  sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php"$1" php"$1"-dev curl php"$1"-curl >/dev/null 2>&1
 		fi
 		status="Installed PHP$version"
 	fi