diff --git a/cmake/Modules/Packages/ML-PACE.cmake b/cmake/Modules/Packages/ML-PACE.cmake
index 6b7c13eafe..d46197114d 100644
--- a/cmake/Modules/Packages/ML-PACE.cmake
+++ b/cmake/Modules/Packages/ML-PACE.cmake
@@ -1,6 +1,6 @@
 set(PACELIB_URL "https://github.com/ICAMS/lammps-user-pace/archive/refs/tags/v.2021.10.25.tar.gz" CACHE STRING "URL for PACE evaluator library sources")
 
-set(PACELIB_MD5 "9cb2ad286abacdc86faf5a9e3a8abd71" CACHE STRING "MD5 checksum of PACE evaluator library tarball")
+set(PACELIB_MD5 "a2ac3315c41a1a4a5c912bcb1bc9c5cc" 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 7825207f6c..5b968732c9 100644
--- a/lib/pace/Install.py
+++ b/lib/pace/Install.py
@@ -22,7 +22,7 @@ checksums = { \
         'v.2021.2.3.upd2' : '8fd1162724d349b930e474927197f20d',
         'v.2021.4.9'      : '4db54962fbd6adcf8c18d46e1798ceb5',
         'v.2021.9.28'     : 'f98363bb98adc7295ea63974738c2a1b',
-        'v.2021.10.25'    : '9cb2ad286abacdc86faf5a9e3a8abd71'
+        'v.2021.10.25'    : 'a2ac3315c41a1a4a5c912bcb1bc9c5cc'
         }