diff --git a/src/Sql/Predicate/Predicate.php b/src/Sql/Predicate/Predicate.php
index a8c6a0ba1..f266a661e 100644
--- a/src/Sql/Predicate/Predicate.php
+++ b/src/Sql/Predicate/Predicate.php
@@ -69,8 +69,8 @@ public function unnest()
      *
      * Utilizes Operator predicate
      *
-     * @param  int|float|bool|string $left
-     * @param  int|float|bool|string $right
+     * @param  int|float|bool|string|Expression $left
+     * @param  int|float|bool|string|Expression $right
      * @param  string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
      * @param  string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
      * @return self Provides a fluent interface
@@ -91,8 +91,8 @@ public function equalTo($left, $right, $leftType = self::TYPE_IDENTIFIER, $right
      *
      * Utilizes Operator predicate
      *
-     * @param  int|float|bool|string $left
-     * @param  int|float|bool|string $right
+     * @param  int|float|bool|string|Expression $left
+     * @param  int|float|bool|string|Expression $right
      * @param  string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
      * @param  string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
      * @return self Provides a fluent interface
@@ -113,8 +113,8 @@ public function notEqualTo($left, $right, $leftType = self::TYPE_IDENTIFIER, $ri
      *
      * Utilizes Operator predicate
      *
-     * @param  int|float|bool|string $left
-     * @param  int|float|bool|string $right
+     * @param  int|float|bool|string|Expression $left
+     * @param  int|float|bool|string|Expression $right
      * @param  string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
      * @param  string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
      * @return self Provides a fluent interface
@@ -135,8 +135,8 @@ public function lessThan($left, $right, $leftType = self::TYPE_IDENTIFIER, $righ
      *
      * Utilizes Operator predicate
      *
-     * @param  int|float|bool|string $left
-     * @param  int|float|bool|string $right
+     * @param  int|float|bool|string|Expression $left
+     * @param  int|float|bool|string|Expression $right
      * @param  string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
      * @param  string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
      * @return self Provides a fluent interface
@@ -157,8 +157,8 @@ public function greaterThan($left, $right, $leftType = self::TYPE_IDENTIFIER, $r
      *
      * Utilizes Operator predicate
      *
-     * @param  int|float|bool|string $left
-     * @param  int|float|bool|string $right
+     * @param  int|float|bool|string|Expression $left
+     * @param  int|float|bool|string|Expression $right
      * @param  string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
      * @param  string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
      * @return self Provides a fluent interface
@@ -179,8 +179,8 @@ public function lessThanOrEqualTo($left, $right, $leftType = self::TYPE_IDENTIFI
      *
      * Utilizes Operator predicate
      *
-     * @param  int|float|bool|string $left
-     * @param  int|float|bool|string $right
+     * @param  int|float|bool|string|Expression $left
+     * @param  int|float|bool|string|Expression $right
      * @param  string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
      * @param  string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
      * @return self Provides a fluent interface