diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..48cae7b
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,5 @@
+# Code Owners settings
+# See: https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
+
+# As soon as a PR is added or a project is published, these teams will be invited for review.
+* @Rebilly/php
diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 9ed7f6e..cbea659 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -25,6 +25,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           extensions: ${{ env.PHP_EXTENSIONS }}
+          tools: composer:v1
 
       - name: Get Composer Cache Directory
         id: composer-cache
@@ -77,6 +78,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-version }}
           extensions: ${{ env.PHP_EXTENSIONS }}
+          tools: composer:v1
 
       - name: Get Composer Cache Directory
         id: composer-cache
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ac1595..474d483 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,12 +16,18 @@ Security - in case of vulnerabilities.
 
 ## [Unreleased]
 
+## 1.1.2 (2021-04-19)
+
+### Changed
+
++ Fix `Money::fromString` phpdoc and improve type validation of arguments.
+
 ## 1.1.0 (2020-02-21)
 
 ### Changed
 
-+ Migrated CI from **Travis CI** to **GitHub Actions**. 
-+ Upgraded minimum PHP version to v7.3. 
++ Migrated CI from **Travis CI** to **GitHub Actions**.
++ Upgraded minimum PHP version to v7.3.
 
 ### Added
 
diff --git a/src/Money.php b/src/Money.php
index 9fde506..ecf9b10 100644
--- a/src/Money.php
+++ b/src/Money.php
@@ -62,7 +62,7 @@ public function __construct(int $amount, Currency $currency)
      * number of fractional digits then the value will be rounded to the
      * currency's number of fractional digits.
      *
-     * @param string $value
+     * @param float|int|string $value
      * @param Currency|string $currency
      *
      * @throws InvalidArgumentException
@@ -71,11 +71,11 @@ public function __construct(int $amount, Currency $currency)
      */
     public static function fromString($value, $currency): self
     {
-        if (!is_scalar($value) && !is_callable([$value, '__toString'])) {
+        if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
             throw new InvalidArgumentException('$value must be a string');
         }
 
-        if (!is_scalar($currency) && !is_callable([$currency, '__toString'])) {
+        if (!is_string($currency) && !(is_object($currency) && method_exists($currency, '__toString'))) {
             throw new InvalidArgumentException('$currency must be a string');
         }
 
diff --git a/tests/MoneyTest.php b/tests/MoneyTest.php
index e13ce51..2e2905e 100644
--- a/tests/MoneyTest.php
+++ b/tests/MoneyTest.php
@@ -27,6 +27,7 @@ public function testCannotBeConstructedUsingInvalidValueArgument(): void
     public function testCannotBeConstructedUsingInvalidCurrencyArgument(): void
     {
         $this->expectException(InvalidArgumentException::class);
+        /** @noinspection PhpParamsInspection */
         Money::fromString(0, new stdClass());
     }