diff --git a/src/USER-CG-CMM/README b/src/USER-CG-CMM/README
index 0974994118..2bc51cef7e 100644
--- a/src/USER-CG-CMM/README
+++ b/src/USER-CG-CMM/README
@@ -1,8 +1,7 @@
 The files in this directory are a user-contributed package for LAMMPS.
 
 The person who created these files is Axel Kohlmeyer
-(akohlmey@cmm.chem.upenn.edu).  Contact him directly if you have
-questions.
+(akohlmey@gmail.com).  Contact him directly if you have questions.
 
 The current version of this package should be considered beta
 quality. The CG potentials work correctly and well, but there will be
diff --git a/src/USER-CG-CMM/angle_cg_cmm.cpp b/src/USER-CG-CMM/angle_cg_cmm.cpp
index 63129ce5a0..ad40080649 100644
--- a/src/USER-CG-CMM/angle_cg_cmm.cpp
+++ b/src/USER-CG-CMM/angle_cg_cmm.cpp
@@ -10,7 +10,7 @@
 
 /* ----------------------------------------------------------------------
    Special Angle Potential for the CMM coarse grained MD potentials.
-   Contributing author: Axel Kohlmeyer <akohlmey@cmm.chem.upenn.edu>
+   Contributing author: Axel Kohlmeyer <akohlmey@gmail.com>
 ------------------------------------------------------------------------- */
 
 #include "math.h"
diff --git a/src/USER-CG-CMM/cg_cmm_parms.cpp b/src/USER-CG-CMM/cg_cmm_parms.cpp
index 69ee6f406a..d82cf77f1d 100644
--- a/src/USER-CG-CMM/cg_cmm_parms.cpp
+++ b/src/USER-CG-CMM/cg_cmm_parms.cpp
@@ -10,7 +10,7 @@
 
 /* ----------------------------------------------------------------------
    Common parameters for the CMM coarse grained MD potentials.
-   Contributing author: Axel Kohlmeyer <akohlmey@cmm.chem.upenn.edu>
+   Contributing author: Axel Kohlmeyer <akohlmey@gmail.com>
 ------------------------------------------------------------------------- */
 
 #include "cg_cmm_parms.h"
diff --git a/src/USER-CG-CMM/pair_cg_cmm.cpp b/src/USER-CG-CMM/pair_cg_cmm.cpp
index 814fff5bf9..a34a13ce5e 100644
--- a/src/USER-CG-CMM/pair_cg_cmm.cpp
+++ b/src/USER-CG-CMM/pair_cg_cmm.cpp
@@ -10,7 +10,7 @@
 
 /* ----------------------------------------------------------------------
    CMM coarse grained MD potentials. Plain version w/o charges.
-   Contributing author: Axel Kohlmeyer <akohlmey@cmm.chem.upenn.edu>
+   Contributing author: Axel Kohlmeyer <akohlmey@gmail.com>
 ------------------------------------------------------------------------- */
 
 #include "pair_cg_cmm.h"
diff --git a/src/USER-CG-CMM/pair_cg_cmm_coul_cut.cpp b/src/USER-CG-CMM/pair_cg_cmm_coul_cut.cpp
index 934e4bc5ac..98b28c24d5 100644
--- a/src/USER-CG-CMM/pair_cg_cmm_coul_cut.cpp
+++ b/src/USER-CG-CMM/pair_cg_cmm_coul_cut.cpp
@@ -10,7 +10,7 @@
 
 /* ----------------------------------------------------------------------
    CMM coarse grained MD potentials. Coulomb with cutoff version.
-   Contributing author: Axel Kohlmeyer <akohlmey@cmm.chem.upenn.edu>
+   Contributing author: Axel Kohlmeyer <akohlmey@gmail.com>
 ------------------------------------------------------------------------- */
 
 #include "pair_cg_cmm_coul_cut.h"
diff --git a/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp b/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp
index 35920d0b0e..98c5d9187d 100644
--- a/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp
+++ b/src/USER-CG-CMM/pair_cg_cmm_coul_long.cpp
@@ -10,7 +10,7 @@
 
 /* ----------------------------------------------------------------------
    CMM coarse grained MD potentials. Coulomb with k-space version.
-   Contributing author: Axel Kohlmeyer <akohlmey@cmm.chem.upenn.edu>
+   Contributing author: Axel Kohlmeyer <akohlmey@gmail.com>
 ------------------------------------------------------------------------- */
 
 #include "pair_cg_cmm_coul_long.h"
diff --git a/src/USER-CG-CMM/pair_cmm_common.cpp b/src/USER-CG-CMM/pair_cmm_common.cpp
index 2108aa8903..97d8323c1d 100644
--- a/src/USER-CG-CMM/pair_cmm_common.cpp
+++ b/src/USER-CG-CMM/pair_cmm_common.cpp
@@ -10,7 +10,7 @@
 
 /* ----------------------------------------------------------------------
    Common functionality for the CMM coarse grained MD potentials.
-   Contributing author: Axel Kohlmeyer <akohlmey@cmm.chem.upenn.edu>
+   Contributing author: Axel Kohlmeyer <akohlmey@gmail.com>
 ------------------------------------------------------------------------- */
 
 #include "pair_cmm_common.h"