diff --git a/cmake/Modules/OpenCLLoader.cmake b/cmake/Modules/OpenCLLoader.cmake
index 54eaab4795..2066b6667e 100644
--- a/cmake/Modules/OpenCLLoader.cmake
+++ b/cmake/Modules/OpenCLLoader.cmake
@@ -1,6 +1,6 @@
 message(STATUS "Downloading and building OpenCL loader library")
-set(OPENCL_LOADER_URL "${LAMMPS_THIRDPARTY_URL}/opencl-loader-2020.12.18.tar.gz" CACHE STRING "URL for OpenCL loader tarball")
-set(OPENCL_LOADER_MD5 "011cdcbd41030be94f3fced6d763a52a" CACHE STRING "MD5 checksum of OpenCL loader tarball")
+set(OPENCL_LOADER_URL "${LAMMPS_THIRDPARTY_URL}/opencl-loader-2021.04.29.tar.gz" CACHE STRING "URL for OpenCL loader tarball")
+set(OPENCL_LOADER_MD5 "bd0bcd6c0989bffc24c76c2e0d67d2c6" CACHE STRING "MD5 checksum of OpenCL loader tarball")
 mark_as_advanced(OPENCL_LOADER_URL)
 mark_as_advanced(OPENCL_LOADER_MD5)
 
diff --git a/lib/gpu/geryon/ocl_device.h b/lib/gpu/geryon/ocl_device.h
index 4e9e42a3cf..a8e5020f00 100644
--- a/lib/gpu/geryon/ocl_device.h
+++ b/lib/gpu/geryon/ocl_device.h
@@ -29,7 +29,7 @@
 #include <iostream>
 
 #ifndef CL_TARGET_OPENCL_VERSION
-#define CL_TARGET_OPENCL_VERSION 210
+#define CL_TARGET_OPENCL_VERSION 300
 #endif
 
 #ifdef __APPLE__
diff --git a/lib/gpu/geryon/ocl_macros.h b/lib/gpu/geryon/ocl_macros.h
index 0e9ce78389..5e5a190ede 100644
--- a/lib/gpu/geryon/ocl_macros.h
+++ b/lib/gpu/geryon/ocl_macros.h
@@ -5,7 +5,7 @@
 #include <cassert>
 
 #ifndef CL_TARGET_OPENCL_VERSION
-#define CL_TARGET_OPENCL_VERSION 210
+#define CL_TARGET_OPENCL_VERSION 300
 #endif
 
 #ifdef __APPLE__