diff --git a/cmake/Modules/Packages/KIM.cmake b/cmake/Modules/Packages/KIM.cmake
index 31586bfbe0..43f95125c8 100644
--- a/cmake/Modules/Packages/KIM.cmake
+++ b/cmake/Modules/Packages/KIM.cmake
@@ -28,8 +28,8 @@ if(PKG_KIM)
       message(FATAL_ERROR "Compiling the KIM-API library requires a Fortran compiler")
     endif()
     ExternalProject_Add(kim_build
-      URL https://s3.openkim.org/kim-api/kim-api-2.1.2.txz
-      URL_MD5 6ac52e14ef52967fc7858220b208cba5
+      URL https://s3.openkim.org/kim-api/kim-api-2.1.3.txz
+      URL_MD5 6ee829a1bbba5f8b9874c88c4c4ebff8
       BINARY_DIR build
       CMAKE_ARGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
                  -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
diff --git a/lib/kim/Install.py b/lib/kim/Install.py
index 836b5ba205..2a70a720af 100644
--- a/lib/kim/Install.py
+++ b/lib/kim/Install.py
@@ -18,7 +18,7 @@ parser = ArgumentParser(prog='Install.py',
 # settings
 
 thisdir = fullpath('.')
-version = "kim-api-2.1.2"
+version = "kim-api-2.1.3"
 
 # help message