diff --git a/README.md b/README.md
index 7de56a8..43326c9 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ dp --pt freeze
 A frozen model file named `frozen_model.pth` will be generated. You can use it in the MD packages or other interfaces.
 For details, follow [DeePMD-kit documentation](https://docs.deepmodeling.com/projects/deepmd/en/latest/).
 
-### Running LAMMPS + MACE with period boundry conditions
+### Running LAMMPS + MACE with period boundary conditions
 
 GNN models use message passing neural networks,
 so the neighbor list built with traditional cutoff radius will not work,
diff --git a/deepmd_gnn/env.py b/deepmd_gnn/env.py
index 71b8369..efe5641 100644
--- a/deepmd_gnn/env.py
+++ b/deepmd_gnn/env.py
@@ -1,4 +1,4 @@
-"""Configurations read from environement variables."""
+"""Configurations read from environment variables."""
 
 import os
 
diff --git a/deepmd_gnn/mace.py b/deepmd_gnn/mace.py
index 6a72486..dd553cf 100644
--- a/deepmd_gnn/mace.py
+++ b/deepmd_gnn/mace.py
@@ -535,7 +535,7 @@ def forward_lower(
                 # for one message-passing layer
                 msg = (
                     "When setting DP_GNN_USE_MAPPING, mapping is required. "
-                    "If you are using LAMMPS, set `atom_modify map yes`.",
+                    "If you are using LAMMPS, set `atom_modify map yes`."
                 )
                 raise ValueError(msg)
             nlist = build_neighbor_list(