diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a6c58887..d2789ef1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,8 +25,9 @@ jobs:
       - name: Set up locales
         run: ./hack/setup-locales.sh
 
-      - name: Download dependencies
-        run: composer update --prefer-stable --prefer-dist --no-interaction --no-progress --no-suggest --prefer-lowest --classmap-authoritative
+      - uses: "ramsey/composer-install@v3"
+        with:
+          dependency-versions: "lowest"
 
       - name: Run tests
         run: composer test
@@ -40,6 +41,7 @@ jobs:
           - '8.1'
           - '8.2'
           - '8.3'
+          - '8.4'
 
     steps:
       - name: Set up PHP
@@ -58,8 +60,10 @@ jobs:
       - name: Set up locales
         run: ./hack/setup-locales.sh
 
-      - name: Download dependencies
-        run: composer install --classmap-authoritative
+      - uses: "ramsey/composer-install@v3"
+        with:
+          # We need to ignore PHP because Psalm blocks installing it
+          composer-options: "--ignore-platform-req=php"
 
       - name: Run tests
         run: composer test
@@ -78,8 +82,7 @@ jobs:
           php-version: '8.1'
           extensions: bcmath, gmp, intl, dom, mbstring
 
-      - name: Download dependencies
-        run: composer install --classmap-authoritative
+      - uses: "ramsey/composer-install@v3"
 
       - name: Psalm
         run: vendor/bin/psalm
diff --git a/composer.json b/composer.json
index 333be9ac..94ae9c31 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
     ],
     "homepage": "http://moneyphp.org",
     "require": {
-        "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
+        "php": "^8.1",
         "ext-bcmath": "*",
         "ext-filter": "*",
         "ext-json": "*"