diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
index fc7a9ba..bfec911 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi
@@ -333,6 +333,7 @@ cdef extern from "grpc/grpc.h":
     void * reserved
     grpc_op_data data

+  void grpc_dont_init_openssl() nogil
   void grpc_init() nogil
   void grpc_shutdown() nogil
   void grpc_shutdown_blocking() nogil
diff --git a/src/python/grpcio/grpc/_cython/cygrpc.pyx b/src/python/grpcio/grpc/_cython/cygrpc.pyx
index ce98fa3..f7f369c 100644
--- a/src/python/grpcio/grpc/_cython/cygrpc.pyx
+++ b/src/python/grpcio/grpc/_cython/cygrpc.pyx
@@ -56,8 +56,8 @@ cdef _initialize():
   # We have Python callbacks called by c-core threads, this ensures the GIL
   # is initialized.
   PyEval_InitThreads()
-  grpc_set_ssl_roots_override_callback(
-          <grpc_ssl_roots_override_callback>ssl_roots_override_callback)
-
+  import ssl
+  grpc_dont_init_openssl()
+  # Load Arcadia certs in ComputePemRootCerts and do not override here.
 
 _initialize()
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/security.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/security.pyx.pxi
index e17ca6d..9cc3fd5 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/security.pyx.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/security.pyx.pxi
@@ -14,16 +14,10 @@
 
 from libc.string cimport memcpy
 
-import pkgutil
-
-
 cdef grpc_ssl_roots_override_result ssl_roots_override_callback(
     char **pem_root_certs) nogil:
   with gil:
-    pkg = __name__
-    if pkg.endswith('.cygrpc'):
-      pkg = pkg[:-len('.cygrpc')]
-    temporary_pem_root_certs = pkgutil.get_data(pkg, '_credentials/roots.pem')
+    temporary_pem_root_certs = ''
     pem_root_certs[0] = <char *>gpr_malloc(len(temporary_pem_root_certs) + 1)
     memcpy(
         pem_root_certs[0], <char *>temporary_pem_root_certs,