diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 23274c2..0b772b2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -24,7 +24,7 @@ jobs:
                 uses: "actions/checkout@v2.3.4"
 
             -   name: "Install PHP"
-                uses: "shivammathur/setup-php@2.9.0"
+                uses: "shivammathur/setup-php@2.37.1"
                 with:
                     coverage: "none"
                     extensions: "mbstring"
@@ -54,7 +54,7 @@ jobs:
                 uses: "actions/checkout@v2.3.4"
 
             -   name: "Install PHP"
-                uses: "shivammathur/setup-php@2.9.0"
+                uses: "shivammathur/setup-php@2.37.1"
                 with:
                     coverage: "none"
                     extensions: "mbstring"
@@ -84,7 +84,7 @@ jobs:
                 uses: "actions/checkout@v2.3.4"
 
             -   name: "Install PHP"
-                uses: "shivammathur/setup-php@2.9.0"
+                uses: "shivammathur/setup-php@2.37.1"
                 with:
                     coverage: "none"
                     extensions: "mbstring"
@@ -111,7 +111,7 @@ jobs:
                 uses: "actions/checkout@v2.3.4"
 
             -   name: "Install PHP"
-                uses: "shivammathur/setup-php@2.9.0"
+                uses: "shivammathur/setup-php@2.37.1"
                 with:
                     coverage: "pcov"
                     extensions: "mbstring"