diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 528e956..db196dd 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -59,7 +59,7 @@ jobs:
           sudo apt-get install -y libcriterion3 libcriterion-dev
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.30.4"
+        uses: "shivammathur/setup-php@2.31.1"
         with:
           php-version: "${{ matrix.php }}"
           extensions: "intl-${{ matrix.icu }}"
@@ -104,7 +104,7 @@ jobs:
           valgrind --version
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.30.4"
+        uses: "shivammathur/setup-php@2.31.1"
         with:
           php-version: "latest"
           extensions: "intl-73.2"
@@ -157,7 +157,7 @@ jobs:
           sudo apt-get install -y libcriterion3 libcriterion-dev
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.30.4"
+        uses: "shivammathur/setup-php@2.31.1"
         with:
           php-version: "${{ matrix.php }}"
           extensions: "intl-${{ matrix.icu }}"