diff --git a/src/BigDecimal.php b/src/BigDecimal.php
index 021ba7f..31d22ab 100644
--- a/src/BigDecimal.php
+++ b/src/BigDecimal.php
@@ -380,6 +380,8 @@ public function remainder(BigNumber|int|float|string $that) : BigDecimal
      *
      * @return BigDecimal[] An array containing the quotient and the remainder.
      *
+     * @psalm-return array{BigDecimal, BigDecimal}
+     *
      * @throws MathException If the divisor is not a valid decimal number, or is zero.
      */
     public function quotientAndRemainder(BigNumber|int|float|string $that) : array
diff --git a/src/BigInteger.php b/src/BigInteger.php
index fd23420..73dcc89 100644
--- a/src/BigInteger.php
+++ b/src/BigInteger.php
@@ -531,6 +531,8 @@ public function remainder(BigNumber|int|float|string $that) : BigInteger
      *
      * @return BigInteger[] An array containing the quotient and the remainder.
      *
+     * @psalm-return array{BigInteger, BigInteger}
+     *
      * @throws DivisionByZeroException If the divisor is zero.
      */
     public function quotientAndRemainder(BigNumber|int|float|string $that) : array
diff --git a/src/BigRational.php b/src/BigRational.php
index 9e07215..fc3060e 100644
--- a/src/BigRational.php
+++ b/src/BigRational.php
@@ -177,6 +177,8 @@ public function remainder() : BigInteger
      * Returns the quotient and remainder of the division of the numerator by the denominator.
      *
      * @return BigInteger[]
+     *
+     * @psalm-return array{BigInteger, BigInteger}
      */
     public function quotientAndRemainder() : array
     {