diff --git a/docs/examples/threaded-ssl.c b/docs/examples/threaded-ssl.c
index f58e447412..5f287460da 100644
--- a/docs/examples/threaded-ssl.c
+++ b/docs/examples/threaded-ssl.c
@@ -27,13 +27,13 @@
  * </DESC>
  */
 /* A multi-threaded example that uses pthreads and fetches 4 remote files at
- * once over HTTPS. The lock callbacks and stuff assume OpenSSL <1.1 or GnuTLS
- * (libgcrypt) so far.
+ * once over HTTPS.
  *
- * OpenSSL docs for this:
- *   https://www.openssl.org/docs/man1.0.2/man3/CRYPTO_num_locks.html
- * gcrypt docs for this:
- *   https://gnupg.org/documentation/manuals/gcrypt/Multi_002dThreading.html
+ * Recent versions of OpenSSL and GnuTLS are thread safe by design, assuming
+ * support for the underlying OS threading API is built-in. Older revisions
+ * of this example demonstrated locking callbacks for the SSL library, which
+ * are no longer necessary. An older revision with callbacks can be found at
+ * https://github.com/curl/curl/blob/curl-7_88_1/docs/examples/threaded-ssl.c
  */
 
 #define USE_OPENSSL /* or USE_GNUTLS accordingly */
@@ -44,71 +44,6 @@
 
 #define NUMT 4
 
-/* we have this global to let the callback get easy access to it */
-static pthread_mutex_t *lockarray;
-
-#ifdef USE_OPENSSL
-#include <openssl/crypto.h>
-static void lock_callback(int mode, int type, char *file, int line)
-{
-  (void)file;
-  (void)line;
-  if(mode & CRYPTO_LOCK) {
-    pthread_mutex_lock(&(lockarray[type]));
-  }
-  else {
-    pthread_mutex_unlock(&(lockarray[type]));
-  }
-}
-
-static unsigned long thread_id(void)
-{
-  unsigned long ret;
-
-  ret = (unsigned long)pthread_self();
-  return ret;
-}
-
-static void init_locks(void)
-{
-  int i;
-
-  lockarray = (pthread_mutex_t *)OPENSSL_malloc(CRYPTO_num_locks() *
-                                                sizeof(pthread_mutex_t));
-  for(i = 0; i<CRYPTO_num_locks(); i++) {
-    pthread_mutex_init(&(lockarray[i]), NULL);
-  }
-
-  CRYPTO_set_id_callback((unsigned long (*)())thread_id);
-  CRYPTO_set_locking_callback((void (*)())lock_callback);
-}
-
-static void kill_locks(void)
-{
-  int i;
-
-  CRYPTO_set_locking_callback(NULL);
-  for(i = 0; i<CRYPTO_num_locks(); i++)
-    pthread_mutex_destroy(&(lockarray[i]));
-
-  OPENSSL_free(lockarray);
-}
-#endif
-
-#ifdef USE_GNUTLS
-#include <gcrypt.h>
-#include <errno.h>
-
-GCRY_THREAD_OPTION_PTHREAD_IMPL;
-
-void init_locks(void)
-{
-  gcry_control(GCRYCTL_SET_THREAD_CBS);
-}
-
-#define kill_locks()
-#endif
-
 /* List of URLs to fetch.*/
 const char * const urls[]= {
   "https://www.example.com/",
@@ -143,8 +78,6 @@ int main(int argc, char **argv)
   /* Must initialize libcurl before any threads are started */
   curl_global_init(CURL_GLOBAL_ALL);
 
-  init_locks();
-
   for(i = 0; i< NUMT; i++) {
     int error = pthread_create(&tid[i],
                                NULL, /* default attributes please */
@@ -162,7 +95,5 @@ int main(int argc, char **argv)
     fprintf(stderr, "Thread %d terminated\n", i);
   }
 
-  kill_locks();
-
   return 0;
 }