diff --git a/unittest/force-styles/tests/mol-pair-lj_cut_tip4p_long.yaml b/unittest/force-styles/tests/mol-pair-lj_cut_tip4p_long.yaml
index d1bed9430b..eaf9bf1a7c 100644
--- a/unittest/force-styles/tests/mol-pair-lj_cut_tip4p_long.yaml
+++ b/unittest/force-styles/tests/mol-pair-lj_cut_tip4p_long.yaml
@@ -1,7 +1,7 @@
 ---
 lammps_version: 10 Feb 2021
 date_generated: Fri Feb 26 23:08:49 2021
-epsilon: 1e-13
+epsilon: 5e-12
 prerequisites: ! |
   atom full
   pair lj/cut/tip4p/long