diff --git a/composer.json b/composer.json
index 7a84b8f..140bb42 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         "amphp/amp": "^3",
         "amphp/pipeline": "^1",
         "amphp/sql": "^2-beta.6",
-        "amphp/sql-common": "^2-beta.7"
+        "amphp/sql-common": "^2-beta.9"
     },
     "require-dev": {
         "ext-pgsql": "*",
diff --git a/src/Internal/PostgresPooledResult.php b/src/Internal/PostgresPooledResult.php
index 26214ac..be9258a 100644
--- a/src/Internal/PostgresPooledResult.php
+++ b/src/Internal/PostgresPooledResult.php
@@ -13,7 +13,7 @@
  */
 final class PostgresPooledResult extends PooledResult implements PostgresResult
 {
-    protected function newInstanceFrom(Result $result, \Closure $release): self
+    protected static function newInstanceFrom(Result $result, \Closure $release): self
     {
         \assert($result instanceof PostgresResult);
         return new self($result, $release);