diff --git a/src/pg/test/expected/08_interpolation_test.out b/src/pg/test/expected/08_interpolation_test.out
index c13a547..1e4502a 100644
--- a/src/pg/test/expected/08_interpolation_test.out
+++ b/src/pg/test/expected/08_interpolation_test.out
@@ -2,6 +2,6 @@ SET client_min_messages TO WARNING;
 \set ECHO none
  nn  |           nni            |       idw       
 -----+--------------------------+-----------------
- 200 | 780.79470198683925288365 | 341.46260750526
+ 200 | 238.41059602632179224595 | 341.46260750526
 (1 row)