diff --git a/_posts/r/scientific/2015-07-30-heatmaps.Rmd b/_posts/r/scientific/2015-07-30-heatmaps.Rmd
index fd63b366e782..2a48b788cd06 100644
--- a/_posts/r/scientific/2015-07-30-heatmaps.Rmd
+++ b/_posts/r/scientific/2015-07-30-heatmaps.Rmd
@@ -77,11 +77,11 @@ chart_link
 The `colors` argument understands color brewer palettes (see `RColorBrewer::brewer.pal.info` for valid names).
 
 ```{r, results = 'hide'}
-p <- plot_ly(z = volcano, colorscale = "Greys", type = "heatmap")
+p <- plot_ly(z = volcano, colors = "Greys", type = "heatmap")
 
 # Create a shareable link to your chart
 # Set up API credentials: https://plot.ly/r/getting-started
-chart_link = api_create(p, filename="heatmap-gray")
+chart_link = api_create(p, filename="heatmap-grey")
 chart_link
 ```
 
diff --git a/_posts/r/scientific/2015-07-30-heatmaps.md b/_posts/r/scientific/2015-07-30-heatmaps.md
index 68640c69658e..c8350e121eda 100644
--- a/_posts/r/scientific/2015-07-30-heatmaps.md
+++ b/_posts/r/scientific/2015-07-30-heatmaps.md
@@ -34,7 +34,7 @@ packageVersion('plotly')
 ```
 
 ```
-## [1] '4.5.2'
+## [1] '4.8.0'
 ```
 
 #### Basic Heatmap
@@ -50,7 +50,7 @@ chart_link = api_create(p, filename="heatmap-simple")
 chart_link
 ```
 
-
+
 
 
 #### Categorical Axes
@@ -69,7 +69,7 @@ chart_link = api_create(p, filename="heatmap-cat")
 chart_link
 ```
 
-
+
 
 #### Sequential Colorscales: Greys
 
@@ -77,15 +77,15 @@ The `colors` argument understands color brewer palettes (see `RColorBrewer::brew
 
 
 ```r
-p <- plot_ly(z = volcano, colorscale = "Greys", type = "heatmap")
+p <- plot_ly(z = volcano, colors = "Greys", type = "heatmap")
 
 # Create a shareable link to your chart
 # Set up API credentials: https://plot.ly/r/getting-started
-chart_link = api_create(p, filename="heatmap-gray")
+chart_link = api_create(p, filename="heatmap-grey")
 chart_link
 ```
 
-
+
 
 #### Custom colorscales
 
@@ -101,7 +101,7 @@ chart_link = api_create(p, filename="heatmap-ramp")
 chart_link
 ```
 
-
+
 
 Or, you can do the scaling yourself and use the colorscale attribute directly...
 
@@ -119,5 +119,5 @@ chart_link = api_create(p, filename="heatmap-custom")
 chart_link
 ```
 
-
+