diff --git a/src/update.cpp b/src/update.cpp
index f9d304de11..aac3e7382f 100644
--- a/src/update.cpp
+++ b/src/update.cpp
@@ -247,7 +247,7 @@ void Update::set_units(const char *style)
     force->ftm2v = 1.0;
     force->mv2d = 1.0;
     force->nktv2p = 1.0;
-    force->qqr2e = 8.9876e30;
+    force->qqr2e = 8.987556e6;
     force->qe2f = 1.0;
     force->vxmu2f = 1.0;
     force->xxt2kmu = 1.0;
@@ -262,13 +262,13 @@ void Update::set_units(const char *style)
     neighbor->skin = 0.1;
                                               
   } else if (strcmp(style,"nano") == 0) {  
-    force->boltz = 0.013806503;
+    force->boltz = 0.013806504;
     force->hplanck = 6.62606896e-4;
     force->mvv2e = 1.0;
     force->ftm2v = 1.0;
     force->mv2d = 1.0;
     force->nktv2p = 1.0;
-    force->qqr2e = 8.9876e39;
+    force->qqr2e = 230.7078669;
     force->qe2f = 1.0;
     force->vxmu2f = 1.0;
     force->xxt2kmu = 1.0;