diff --git a/src/backends/plotly.jl b/src/backends/plotly.jl
index d6a712c8..89c97e54 100644
--- a/src/backends/plotly.jl
+++ b/src/backends/plotly.jl
@@ -339,7 +339,11 @@ function plotly_add_legend!(plotattributes_out::KW, sp::Subplot)
             :font     => plotly_font(legendfont(sp)),
             :tracegroupgap => 0,
             :x => legend_position.coords[1],
-            :y => legend_position.coords[2]
+            :y => legend_position.coords[2],
+            :title => KW(
+                :text => sp[:legendtitle] === nothing ? "" : string(sp[:legendtitle]),
+                :font => plotly_font(legendtitlefont(sp)),
+            ),
         )
     end
 end
@@ -883,7 +887,7 @@ const ijulia_initialized = Ref(false)
 
 function plotly_html_head(plt::Plot)
     plotly =
-        use_local_dependencies[] ? ("file:///" * plotly_local_file_path[]) : "https://cdn.plot.ly/plotly-1.54.2.min.js"
+        use_local_dependencies[] ? ("file:///" * plotly_local_file_path[]) : "https://cdn.plot.ly/plotly-1.57.1.min.js"
 
     include_mathjax = get(plt[:extra_plot_kwargs], :include_mathjax, "")
     mathjax_file = include_mathjax != "cdn" ? ("file://" * include_mathjax) : "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML"
diff --git a/src/init.jl b/src/init.jl
index 3cb22c79..2a64844d 100644
--- a/src/init.jl
+++ b/src/init.jl
@@ -81,7 +81,7 @@ function __init__()
     if get(ENV, "PLOTS_HOST_DEPENDENCY_LOCAL", "false") == "true"
         global plotly_local_file_path[] = joinpath(@get_scratch!("plotly"), "plotly-1.54.2.min.js")
         if !isfile(plotly_local_file_path[])
-            download("https://cdn.plot.ly/plotly-1.54.2.min.js", plotly_local_file_path[])
+            download("https://cdn.plot.ly/plotly-1.57.1.min.js", plotly_local_file_path[])
         end
 
         use_local_plotlyjs[] = true