diff --git a/internal/sqlc/template/template.sql.tmpl b/internal/sqlc/template/template.sql.tmpl
index c60244b..c1d9fa3 100644
--- a/internal/sqlc/template/template.sql.tmpl
+++ b/internal/sqlc/template/template.sql.tmpl
@@ -78,7 +78,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.GetNonPrimaryKeyColumns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -98,7 +98,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.GetNonPrimaryKeyColumns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -117,7 +117,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.GetNonPrimaryKeyColumns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -137,7 +137,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.GetNonPrimaryKeyColumns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -352,7 +352,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.Columns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -375,7 +375,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.Columns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -397,7 +397,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.Columns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END
@@ -420,7 +420,7 @@ UPDATE {{$.Table.Name}}
 SET
 {{ range $i, $column := $.Table.Columns}}{{if $i}},
 {{end}}    {{$column.Name}} = CASE
-        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask))
+        WHEN '{{$column.Name}}' = any(sqlc.arg(update_mask)::text[])
             THEN {{query_argument $column}}
         ELSE {{$column.Name}}
     END