diff --git a/Gemfile.lock b/Gemfile.lock
index 46c8777333280..b70c6f25ee639 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -358,7 +358,7 @@ GEM
     parser (3.2.1.1)
       ast (~> 2.4.1)
     path_expander (1.1.1)
-    pg (1.4.5)
+    pg (1.5.1)
     propshaft (0.6.4)
       actionpack (>= 7.0.0)
       activesupport (>= 7.0.0)
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 116b078cc3d5c..ab8bed7b9f3ed 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -1096,7 +1096,7 @@ def update_typemap_for_default_timezone
               PG::TextDecoder::TimestampUtc :
               PG::TextDecoder::TimestampWithoutTimeZone
 
-            @timestamp_decoder = decoder_class.new(@timestamp_decoder.to_h)
+            @timestamp_decoder = decoder_class.new(**@timestamp_decoder.to_h)
             @raw_connection.type_map_for_results.add_coder(@timestamp_decoder)
 
             @mapped_default_timezone = default_timezone