diff --git a/library/entropy.c b/library/entropy.c
index cc68628..f12a239 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -164,10 +164,10 @@
     if( use_len > MBEDTLS_ENTROPY_BLOCK_SIZE )
     {
 #if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
-        if( ( ret = mbedtls_sha512_ret( data, len, tmp, 0 ) ) != 0 )
+        if( ( ret = mbedtls_sha512( data, len, tmp, 0 ) ) != 0 )
             goto cleanup;
 #else
-        if( ( ret = mbedtls_sha256_ret( data, len, tmp, 0 ) ) != 0 )
+        if( ( ret = mbedtls_sha256( data, len, tmp, 0 ) ) != 0 )
             goto cleanup;
 #endif
         p = tmp;
@@ -184,22 +184,22 @@
      */
 #if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
     if( ctx->accumulator_started == 0 &&
-        ( ret = mbedtls_sha512_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
+        ( ret = mbedtls_sha512_starts( &ctx->accumulator, 0 ) ) != 0 )
         goto cleanup;
     else
         ctx->accumulator_started = 1;
-    if( ( ret = mbedtls_sha512_update_ret( &ctx->accumulator, header, 2 ) ) != 0 )
+    if( ( ret = mbedtls_sha512_update( &ctx->accumulator, header, 2 ) ) != 0 )
         goto cleanup;
-    ret = mbedtls_sha512_update_ret( &ctx->accumulator, p, use_len );
+    ret = mbedtls_sha512_update( &ctx->accumulator, p, use_len );
 #else
     if( ctx->accumulator_started == 0 &&
-        ( ret = mbedtls_sha256_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
+        ( ret = mbedtls_sha256_starts( &ctx->accumulator, 0 ) ) != 0 )
         goto cleanup;
     else
         ctx->accumulator_started = 1;
-    if( ( ret = mbedtls_sha256_update_ret( &ctx->accumulator, header, 2 ) ) != 0 )
+    if( ( ret = mbedtls_sha256_update( &ctx->accumulator, header, 2 ) ) != 0 )
         goto cleanup;
-    ret = mbedtls_sha256_update_ret( &ctx->accumulator, p, use_len );
+    ret = mbedtls_sha256_update( &ctx->accumulator, p, use_len );
 #endif
 
 cleanup:
@@ -361,7 +361,7 @@
      * in a previous call to entropy_update(). If this is not guaranteed, the
      * code below will fail.
      */
-    if( ( ret = mbedtls_sha512_finish_ret( &ctx->accumulator, buf ) ) != 0 )
+    if( ( ret = mbedtls_sha512_finish( &ctx->accumulator, buf ) ) != 0 )
         goto exit;
 
     /*
@@ -369,20 +369,20 @@
      */
     mbedtls_sha512_free( &ctx->accumulator );
     mbedtls_sha512_init( &ctx->accumulator );
-    if( ( ret = mbedtls_sha512_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
+    if( ( ret = mbedtls_sha512_starts( &ctx->accumulator, 0 ) ) != 0 )
         goto exit;
-    if( ( ret = mbedtls_sha512_update_ret( &ctx->accumulator, buf,
+    if( ( ret = mbedtls_sha512_update( &ctx->accumulator, buf,
                                            MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
         goto exit;
 
     /*
      * Perform second SHA-512 on entropy
      */
-    if( ( ret = mbedtls_sha512_ret( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
+    if( ( ret = mbedtls_sha512( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
                                     buf, 0 ) ) != 0 )
         goto exit;
 #else /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
-    if( ( ret = mbedtls_sha256_finish_ret( &ctx->accumulator, buf ) ) != 0 )
+    if( ( ret = mbedtls_sha256_finish( &ctx->accumulator, buf ) ) != 0 )
         goto exit;
 
     /*
@@ -390,16 +390,16 @@
      */
     mbedtls_sha256_free( &ctx->accumulator );
     mbedtls_sha256_init( &ctx->accumulator );
-    if( ( ret = mbedtls_sha256_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
+    if( ( ret = mbedtls_sha256_starts( &ctx->accumulator, 0 ) ) != 0 )
         goto exit;
-    if( ( ret = mbedtls_sha256_update_ret( &ctx->accumulator, buf,
+    if( ( ret = mbedtls_sha256_update( &ctx->accumulator, buf,
                                            MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
         goto exit;
 
     /*
      * Perform second SHA-256 on entropy
      */
-    if( ( ret = mbedtls_sha256_ret( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
+    if( ( ret = mbedtls_sha256( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
                                     buf, 0 ) ) != 0 )
         goto exit;
 #endif /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */