diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 31120742..b49f1ceb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,15 +11,15 @@ on:
 
 jobs:
   testsuite-linux:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
-        php-version: ['7.2', '8.0', '8.1']
+        php-version: ['7.4', '8.0', '8.1']
         db-type: [mysql, pgsql, sqlite]
         prefer-lowest: ['']
         include:
-          - php-version: '7.2'
+          - php-version: '7.4'
             db-type: 'sqlite'
             prefer-lowest: 'prefer-lowest'
 
@@ -99,7 +99,7 @@ jobs:
 
   cs-stan:
     name: Coding Standard & Static Analysis
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v3
@@ -107,7 +107,7 @@ jobs:
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: '7.2'
+        php-version: '7.4'
         extensions: mbstring, intl
         coverage: none
         tools: cs2pr
diff --git a/composer.json b/composer.json
index 219997f1..00627425 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "source": "https://github.com/cakephp/migrations"
     },
     "require": {
-        "php": ">=7.2.0",
+        "php": ">=7.4.0",
         "robmorgan/phinx": "^0.12",
         "cakephp/orm": "^4.3.0",
         "cakephp/cache": "^4.3.0"
diff --git a/src/View/Helper/MigrationHelper.php b/src/View/Helper/MigrationHelper.php
index 7dff4d83..e5e9d8dc 100644
--- a/src/View/Helper/MigrationHelper.php
+++ b/src/View/Helper/MigrationHelper.php
@@ -382,7 +382,7 @@ public function getColumnOption(array $options)
         if (isset($columnOptions['signed']) && $columnOptions['signed'] === true) {
             unset($columnOptions['signed']);
         }
-        if (empty($columnOptions['precision'])) {
+        if ($columnOptions['precision'] === null) {
             unset($columnOptions['precision']);
         } else {
             // due to Phinx using different naming for the precision and scale to CakePHP
diff --git a/tests/TestCase/MigrationsTest.php b/tests/TestCase/MigrationsTest.php
index 947c3873..e71cd33e 100644
--- a/tests/TestCase/MigrationsTest.php
+++ b/tests/TestCase/MigrationsTest.php
@@ -225,7 +225,7 @@ public function testCreateWithEncoding()
         // Tests that if a collation is defined, it is used
         $numbersTable = $this->getTableLocator()->get('Numbers', ['connection' => $this->Connection]);
         $options = $numbersTable->getSchema()->getOptions();
-        $this->assertSame('utf8_bin', $options['collation']);
+        $this->assertSame('utf8mb3_bin', $options['collation']);
 
         // Tests that if a collation is not defined, it will use the database default one
         $lettersTable = $this->getTableLocator()->get('Letters', ['connection' => $this->Connection]);