diff --git a/.appveyor.yml b/.appveyor.yml
index dfc01ccce97de..6caf9b5a0093c 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -22,6 +22,7 @@ install:
     - cd ..
     - copy /Y php.ini-development php.ini-min
     - echo memory_limit=-1 >> php.ini-min
+    - echo precision=14 >> php.ini-min
     - echo serialize_precision=14 >> php.ini-min
     - echo max_execution_time=1200 >> php.ini-min
     - echo post_max_size=4G >> php.ini-min
diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index cf869eea173cd..c84c62b402267 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -92,7 +92,7 @@ jobs:
         with:
           coverage: "none"
           extensions: "memcached,redis-5.3.4,xsl,ldap"
-          ini-values: date.timezone=Europe/Paris,memory_limit=-1,default_socket_timeout=10,session.gc_probability=0,apc.enable_cli=1,zend.assertions=1
+          ini-values: date.timezone=Europe/Paris,memory_limit=-1,default_socket_timeout=10,session.gc_probability=0,apc.enable_cli=1,zend.assertions=1,precision=14
           php-version: "${{ matrix.php }}"
 
       - name: Load fixtures
diff --git a/.github/workflows/intl-data-tests.yml b/.github/workflows/intl-data-tests.yml
index 477278e416c4d..a0ce26c4f0bd5 100644
--- a/.github/workflows/intl-data-tests.yml
+++ b/.github/workflows/intl-data-tests.yml
@@ -48,7 +48,7 @@ jobs:
         with:
           coverage: "none"
           extensions: "zip,intl-${{env.SYMFONY_ICU_VERSION}}"
-          ini-values: "memory_limit=-1"
+          ini-values: "memory_limit=-1,precision=14"
           php-version: "7.4"
 
       - name: Install dependencies
diff --git a/.github/workflows/phpunit-bridge.yml b/.github/workflows/phpunit-bridge.yml
index d10098d119114..0d00996401a0d 100644
--- a/.github/workflows/phpunit-bridge.yml
+++ b/.github/workflows/phpunit-bridge.yml
@@ -33,6 +33,7 @@ jobs:
         with:
           coverage: "none"
           php-version: "5.5"
+          ini-values: "memory_limit=-1,precision=14"
 
       - name: Lint
         run: find ./src/Symfony/Bridge/PhpUnit -name '*.php' | grep -v -e /Tests/ -e ForV6 -e ForV7 -e ForV8 -e ForV9 -e ConstraintLogicTrait | parallel -j 4 php -l {}
diff --git a/.github/workflows/psalm.yml b/.github/workflows/psalm.yml
index 96f34721f4a46..8d1ec741aa331 100644
--- a/.github/workflows/psalm.yml
+++ b/.github/workflows/psalm.yml
@@ -25,7 +25,7 @@ jobs:
         with:
           php-version: '8.1'
           extensions: "json,memcached,mongodb,redis,xsl,ldap,dom"
-          ini-values: "memory_limit=-1"
+          ini-values: "memory_limit=-1,precision=14"
           coverage: none
 
       - name: Checkout target branch
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 42d2f02fbd24f..a26157e2f8e77 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -48,7 +48,7 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           coverage: "none"
-          ini-values: date.timezone=Europe/Paris,memory_limit=-1,default_socket_timeout=10,session.gc_probability=0,apc.enable_cli=1,zend.assertions=1
+          ini-values: date.timezone=Europe/Paris,memory_limit=-1,default_socket_timeout=10,session.gc_probability=0,apc.enable_cli=1,zend.assertions=1,precision=14
           php-version: "${{ matrix.php }}"
           extensions: "${{ env.extensions }}"
           tools: flex