diff --git a/MagickCore/quantize.c b/MagickCore/quantize.c
index c1faafa..29a1c1d 100644
--- a/MagickCore/quantize.c
+++ b/MagickCore/quantize.c
@@ -543,7 +543,7 @@
       image_view=AcquireAuthenticCacheView(image,exception);
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
       #pragma omp parallel for schedule(static,4) shared(status) \
-        dynamic_num_threads_dos(image->columns,image->rows)
+        dynamic_number_threads(image->columns,image->rows,1)
 #endif
       for (y=0; y < (ssize_t) image->rows; y++)
       {
@@ -2380,7 +2380,7 @@
   if (image->storage_class == PseudoClass)
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
     #pragma omp parallel for schedule(static,4) shared(progress,status) \
-      dynamic_num_threads_uno(image->colors)
+      dynamic_number_threads(image->columns,1,1)
 #endif
     for (i=0; i < (ssize_t) image->colors; i++)
     {
@@ -2408,7 +2408,7 @@
   image_view=AcquireAuthenticCacheView(image,exception);
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
   #pragma omp parallel for schedule(static,4) shared(progress,status) \
-    dynamic_num_threads_dos(image->columns,image->rows)
+    dynamic_number_threads(image->columns,image->rows,1)
 #endif
   for (y=0; y < (ssize_t) image->rows; y++)
   {
@@ -3305,7 +3305,7 @@
       image_view=AcquireAuthenticCacheView(image,exception);
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
       #pragma omp parallel for schedule(static,4) shared(status) \
-        dynamic_num_threads_dos(image->columns,image->rows)
+        dynamic_number_threads(image->columns,image->rows,1)
 #endif
       for (y=0; y < (ssize_t) image->rows; y++)
       {
@@ -3383,7 +3383,7 @@
   image_view=AcquireAuthenticCacheView(image,exception);
 #if defined(MAGICKCORE_OPENMP_SUPPORT)
   #pragma omp parallel for schedule(static,4) shared(status) \
-    dynamic_num_threads_dos(image->columns,image->rows)
+    dynamic_number_threads(image->columns,image->rows,1)
 #endif
   for (y=0; y < (ssize_t) image->rows; y++)
   {