diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index a75b0654..b767bd91 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -21,7 +21,7 @@ jobs:
           php-version: "${{ env.PHP_CURRENT }}"
           ini-values: "${{ env.INI_VALUES }}"
           tools: composer-normalize, composer-require-checker
-      - uses: "ramsey/composer-install@v3"
+      - uses: "ramsey/composer-install@3.0.0"
 
       - run: "composer validate --strict"
       - run: "composer-normalize --dry-run"
@@ -38,7 +38,7 @@ jobs:
           php-version: "${{ env.PHP_CURRENT }}"
           ini-values: "${{ env.INI_VALUES }}"
           tools: cs2pr
-      - uses: "ramsey/composer-install@v3"
+      - uses: "ramsey/composer-install@3.0.0"
 
       - run: "vendor/bin/phpcs -q --report=checkstyle | cs2pr"
 
@@ -53,7 +53,7 @@ jobs:
           coverage: "none"
           php-version: "${{ env.PHP_CURRENT }}"
           ini-values: "${{ env.INI_VALUES }}"
-      - uses: "ramsey/composer-install@v3"
+      - uses: "ramsey/composer-install@3.0.0"
 
       - run: "vendor/bin/phpstan"
 
@@ -78,7 +78,7 @@ jobs:
           coverage: "pcov"
           php-version: "${{ matrix.php-version }}"
           ini-values: "${{ env.INI_VALUES }}"
-      - uses: "ramsey/composer-install@v3"
+      - uses: "ramsey/composer-install@3.0.0"
         with:
           dependency-versions: "${{ matrix.dependencies }}"
 
@@ -97,7 +97,7 @@ jobs:
           coverage: "pcov"
           php-version: "${{ env.PHP_CURRENT }}"
           ini-values: "${{ env.INI_VALUES }}"
-      - uses: "ramsey/composer-install@v3"
+      - uses: "ramsey/composer-install@3.0.0"
 
       - name: "Run Infection"
         timeout-minutes: 30