diff --git a/08_dimensionality_reduction.ipynb b/08_dimensionality_reduction.ipynb
index 975d83b..e5ef84c 100644
--- a/08_dimensionality_reduction.ipynb
+++ b/08_dimensionality_reduction.ipynb
@@ -2697,7 +2697,7 @@
     "        coeffs = silhouette_coefficients[y_pred == i]\n",
     "        coeffs.sort()\n",
     "\n",
-    "        color = matplotlib.cm.spectral(i / k)\n",
+    "        color = matplotlib.cm.Spectral(i / k)\n",
     "        plt.fill_betweenx(np.arange(pos, pos + len(coeffs)), 0, coeffs,\n",
     "                          facecolor=color, edgecolor=color, alpha=0.7)\n",
     "        ticks.append(pos + len(coeffs) // 2)\n",