diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index a3f21745..ea87b41d 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -194,7 +194,7 @@ jobs:
 
       - name: "Downgrade brick/math in lock file, to test compatibility with older versions"
         run: |
-          composer update brick/math:"0.11.0"
+          composer update brick/math:"0.14.2"
 
       - name: "Install dependencies (Composer)"
         uses: "ramsey/composer-install@v3"
diff --git a/composer.json b/composer.json
index cb4422dd..eb04a050 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     ],
     "require": {
         "php": "^8.2",
-        "brick/math": "^0.11 || ^0.12 || ^0.13 || ^0.14"
+        "brick/math": "^0.14.2 || ^0.15 || ^0.16 || ^0.17"
     },
     "require-dev": {
         "captainhook/captainhook": "^5.25",
diff --git a/src/Math/BrickMathCalculator.php b/src/Math/BrickMathCalculator.php
index 57bbabe4..b18d35aa 100644
--- a/src/Math/BrickMathCalculator.php
+++ b/src/Math/BrickMathCalculator.php
@@ -32,16 +32,16 @@
 final class BrickMathCalculator implements CalculatorInterface
 {
     private const ROUNDING_MODE_MAP = [
-        RoundingMode::UNNECESSARY => BrickMathRounding::UNNECESSARY,
-        RoundingMode::UP => BrickMathRounding::UP,
-        RoundingMode::DOWN => BrickMathRounding::DOWN,
-        RoundingMode::CEILING => BrickMathRounding::CEILING,
-        RoundingMode::FLOOR => BrickMathRounding::FLOOR,
-        RoundingMode::HALF_UP => BrickMathRounding::HALF_UP,
-        RoundingMode::HALF_DOWN => BrickMathRounding::HALF_DOWN,
-        RoundingMode::HALF_CEILING => BrickMathRounding::HALF_CEILING,
-        RoundingMode::HALF_FLOOR => BrickMathRounding::HALF_FLOOR,
-        RoundingMode::HALF_EVEN => BrickMathRounding::HALF_EVEN,
+        RoundingMode::UNNECESSARY => BrickMathRounding::Unnecessary,
+        RoundingMode::UP => BrickMathRounding::Up,
+        RoundingMode::DOWN => BrickMathRounding::Down,
+        RoundingMode::CEILING => BrickMathRounding::Ceiling,
+        RoundingMode::FLOOR => BrickMathRounding::Floor,
+        RoundingMode::HALF_UP => BrickMathRounding::HalfUp,
+        RoundingMode::HALF_DOWN => BrickMathRounding::HalfDown,
+        RoundingMode::HALF_CEILING => BrickMathRounding::HalfCeiling,
+        RoundingMode::HALF_FLOOR => BrickMathRounding::HalfFloor,
+        RoundingMode::HALF_EVEN => BrickMathRounding::HalfEven,
     ];
 
     public function add(NumberInterface $augend, NumberInterface ...$addends): NumberInterface
@@ -145,11 +145,9 @@ public function toInteger(Hexadecimal $value): IntegerObject
 
     /**
      * Maps ramsey/uuid rounding modes to those used by brick/math
-     *
-     * @return BrickMathRounding::*
      */
-    private function getBrickRoundingMode(int $roundingMode)
+    private function getBrickRoundingMode(int $roundingMode): BrickMathRounding
     {
-        return self::ROUNDING_MODE_MAP[$roundingMode] ?? BrickMathRounding::UNNECESSARY;
+        return self::ROUNDING_MODE_MAP[$roundingMode] ?? BrickMathRounding::Unnecessary;
     }
 }
diff --git a/src/Type/Time.php b/src/Type/Time.php
index b2061dac..8a6fe01e 100644
--- a/src/Type/Time.php
+++ b/src/Type/Time.php
@@ -63,9 +63,10 @@ public function toString(): string
     {
         /** @var numeric-string $microseconds */
         $microseconds = sprintf('%06s', $this->microseconds->toString());
+        /** @var numeric-string $time */
+        $time = "{$this->seconds->toString()}.$microseconds";
 
-        /** @var numeric-string */
-        return "{$this->seconds->toString()}.$microseconds";
+        return $time;
     }
 
     /**
diff --git a/tests/Converter/Time/PhpTimeConverterTest.php b/tests/Converter/Time/PhpTimeConverterTest.php
index 55ae249d..5c7010d6 100644
--- a/tests/Converter/Time/PhpTimeConverterTest.php
+++ b/tests/Converter/Time/PhpTimeConverterTest.php
@@ -38,10 +38,10 @@ public function testCalculateTimeReturnsArrayOfTimeSegments(): void
 
         $converter = new PhpTimeConverter();
 
-        /** @var numeric-string $numericSeconds */
+        /** @var non-empty-string&numeric-string $numericSeconds */
         $numericSeconds = (string) $seconds;
 
-        /** @var numeric-string $numericMicroseconds */
+        /** @var non-empty-string&numeric-string $numericMicroseconds */
         $numericMicroseconds = (string) $microseconds;
 
         $returned = $converter->calculateTime($numericSeconds, $numericMicroseconds);
diff --git a/tests/Math/BrickMathCalculatorTest.php b/tests/Math/BrickMathCalculatorTest.php
index 8cb5d906..e4e55fac 100644
--- a/tests/Math/BrickMathCalculatorTest.php
+++ b/tests/Math/BrickMathCalculatorTest.php
@@ -96,7 +96,9 @@ public function testFromBaseThrowsException(): void
         $calculator = new BrickMathCalculator();
 
         $this->expectException(InvalidArgumentException::class);
-        $this->expectExceptionMessage('"o" is not a valid character in base 16');
+        $this->expectExceptionMessageMatches(
+            '/(\"o\" is not a valid character in base 16\.|Character \"o\" is not valid in base 16\.)/'
+        );
 
         $calculator->fromBase('foobar', 16);
     }
diff --git a/tests/UuidTest.php b/tests/UuidTest.php
index f83e163c..eecde237 100644
--- a/tests/UuidTest.php
+++ b/tests/UuidTest.php
@@ -1051,8 +1051,8 @@ public function test32BitMatch64BitForOneHourPeriod(): void
                 );
 
                 // Assert that the time matches
-                $usecAdd = BigDecimal::of($usec)->dividedBy('1000000', 14, RoundingMode::HALF_UP);
-                $testTime = BigDecimal::of($currentTime)->plus($usecAdd)->toScale(0, RoundingMode::DOWN);
+                $usecAdd = BigDecimal::of($usec)->dividedBy('1000000', 14, RoundingMode::HalfUp);
+                $testTime = BigDecimal::of($currentTime)->plus($usecAdd)->toScale(0, RoundingMode::Down);
                 $this->assertSame((string) $testTime, (string) $uuid64->getDateTime()->getTimestamp());
                 $this->assertSame((string) $testTime, (string) $uuid32->getDateTime()->getTimestamp());
             }