diff --git a/.github/workflows/reusable-build-binary.yml b/.github/workflows/reusable-build-binary.yml
index 3fde7f4..1833566 100644
--- a/.github/workflows/reusable-build-binary.yml
+++ b/.github/workflows/reusable-build-binary.yml
@@ -25,7 +25,7 @@ jobs:
           fail-fast: true
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           composer-options: "--no-dev"
           # Bust the cache at least once a month - output format: YYYY-MM.
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 8d4bc1a..1db8707 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           # Bust the cache at least once a month - output format: YYYY-MM.
           custom-cache-suffix: $(date -u "+%Y-%m")
@@ -93,14 +93,14 @@ jobs:
 
       - name: Install Composer dependencies
         if: ${{ matrix.php != '8.6' }}
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           # Bust the cache at least once a month - output format: YYYY-MM.
           custom-cache-suffix: $(date -u "+%Y-%m")
 
       - name: "Install Composer dependencies (PHP nightly, ignore PHP reqs)"
         if: ${{ matrix.php == '8.6' }}
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           composer-options: --ignore-platform-req=php
           custom-cache-suffix: $(date -u "+%Y-%m")