diff --git a/cmake/Modules/Packages/ML-PACE.cmake b/cmake/Modules/Packages/ML-PACE.cmake
index dd3bc83b7a..98a9496154 100644
--- a/cmake/Modules/Packages/ML-PACE.cmake
+++ b/cmake/Modules/Packages/ML-PACE.cmake
@@ -1,8 +1,8 @@
 if(NOT DEFINED LOCAL_ML-PACE)
   # standard user scenario: get latest ML-PACE from github
-  set(PACELIB_URL "https://github.com/ICAMS/lammps-user-pace/archive/refs/tags/v.2021.10.25.fix2.tar.gz" CACHE STRING "URL for PACE evaluator library sources")
+  set(PACELIB_URL "https://github.com/ICAMS/lammps-user-pace/archive/refs/tags/v.2022.06.27.tar.gz" CACHE STRING "URL for PACE evaluator library sources")
 
-  set(PACELIB_MD5 "32394d799bc282bb57696c78c456e64f" CACHE STRING "MD5 checksum of PACE evaluator library tarball")
+  set(PACELIB_MD5 "400f0a4b44c1ce64ae47796e6de4bba8" CACHE STRING "MD5 checksum of PACE evaluator library tarball")
   mark_as_advanced(PACELIB_URL)
   mark_as_advanced(PACELIB_MD5)
 
diff --git a/lib/pace/Install.py b/lib/pace/Install.py
index bf4723a090..e7bcacefb7 100644
--- a/lib/pace/Install.py
+++ b/lib/pace/Install.py
@@ -18,7 +18,7 @@ from install_helpers import fullpath, geturl, checkmd5sum
 # settings
 
 thisdir = fullpath('.')
-version = 'v.2021.10.25.fix2'
+version ='v.2022.06.27'
 
 # known checksums for different PACE versions. used to validate the download.
 checksums = { \
@@ -27,7 +27,8 @@ checksums = { \
     'v.2021.9.28': 'f98363bb98adc7295ea63974738c2a1b',
     'v.2021.10.25': 'a2ac3315c41a1a4a5c912bcb1bc9c5cc',
     'v.2021.10.25.fix': 'e0572de57039d4afedefb25707b6ceae',
-    'v.2021.10.25.fix2': '32394d799bc282bb57696c78c456e64f'
+    'v.2021.10.25.fix2': '32394d799bc282bb57696c78c456e64f',
+    'v.2022.06.27': '400f0a4b44c1ce64ae47796e6de4bba8'
 }
 
 parser = ArgumentParser(prog='Install.py',
diff --git a/lib/pace/Makefile b/lib/pace/Makefile
index e6d7bff2b9..43e5287ecc 100644
--- a/lib/pace/Makefile
+++ b/lib/pace/Makefile
@@ -11,7 +11,7 @@ CNPY_CPP_PATH = src/cnpy
 CNPY_CPP_INC = $(CNPY_CPP_PATH)
 CNPY_SRC_FILES =  $(CNPY_CPP_PATH)/cnpy.cpp
 
-SRC_FILES = $(wildcard src/ML-PACE/*.cpp)
+SRC_FILES = $(wildcard src/ML-PACE/ace/*.cpp) $(wildcard src/ML-PACE/ace-evaluator/*.cpp)
 SRC = $(filter-out src/ML-PACE/pair_pace.cpp, $(SRC_FILES)) $(CNPY_SRC_FILES)
 
 # ------ DEFINITIONS ------
@@ -21,7 +21,7 @@ OBJ =   $(SRC:.cpp=.o)
 
 
 # ------ SETTINGS ------
-CXXFLAGS = -O3 -fPIC -Isrc/ML-PACE -I$(YAML_CPP_INC) -I$(WIGNER_CPP_INC) -I$(CNPY_CPP_INC) -DEXTRA_C_PROJECTIONS
+CXXFLAGS = -O3 -fPIC -Isrc/ML-PACE/ace -Isrc/ML-PACE/ace-evaluator -I$(YAML_CPP_INC) -I$(WIGNER_CPP_INC) -I$(CNPY_CPP_INC) -DEXTRA_C_PROJECTIONS
 
 ARCHIVE =	ar
 ARCHFLAG =	-rc
diff --git a/lib/pace/Makefile.lammps b/lib/pace/Makefile.lammps
index 7e4513e36d..cda4e81662 100644
--- a/lib/pace/Makefile.lammps
+++ b/lib/pace/Makefile.lammps
@@ -1,3 +1,3 @@
-pace_SYSINC =-I../../lib/pace/src/ML-PACE -I../../lib/pace/src/yaml-cpp/include -I../../lib/pace/src/wigner-cpp/include/wigner -DEXTRA_C_PROJECTIONS
+pace_SYSINC =-I../../lib/pace/src/ML-PACE/ace -I../../lib/pace/src/ML-PACE/ace-evaluator -I../../lib/pace/src/yaml-cpp/include -I../../lib/pace/src/wigner-cpp/include/wigner -DEXTRA_C_PROJECTIONS
 pace_SYSLIB = -L../../lib/pace/ -lpace -L../../lib/pace/src/yaml-cpp/ -lyaml-cpp
 pace_SYSPATH =
\ No newline at end of file