diff --git a/DESCRIPTION b/DESCRIPTION
index 57a76fb780..aacfee00af 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -32,7 +32,7 @@ Imports:
     digest,
     viridisLite,
     base64enc,
-    htmltools,
+    htmltools (>= 0.3.6),
     htmlwidgets (>= 1.3),
     tidyr,
     hexbin,
diff --git a/R/highlight.R b/R/highlight.R
index c66e6a2118..7fe829898f 100644
--- a/R/highlight.R
+++ b/R/highlight.R
@@ -206,7 +206,10 @@ highlight_defaults <- function() {
 
 selectizeLib <- function(bootstrap = TRUE) {
   htmltools::htmlDependency(
-    "selectize", "0.12.0", depPath("selectize"),
+    name = "selectize", 
+    version = "0.12.0", 
+    package = "plotly",
+    src = dependency_dir("selectize"),
     stylesheet = if (bootstrap) "selectize.bootstrap3.css",
     script = "selectize.min.js"
   )
@@ -214,12 +217,15 @@ selectizeLib <- function(bootstrap = TRUE) {
 
 colourPickerLib <- function() {
   htmltools::htmlDependency(
-    "colourpicker", "1.1", depPath("colourpicker"),
+    name = "colourpicker", 
+    version = "1.1", 
+    package = "plotly",
+    src = dependency_dir("colourpicker"),
     stylesheet = "colourpicker.min.css",
     script = "colourpicker.min.js"
   )
 }
 
-depPath <- function(...) {
-  system.file('htmlwidgets', 'lib', ..., package = 'plotly')
+dependency_dir <- function(...) {
+  file.path('htmlwidgets', 'lib', ...)
 }
diff --git a/R/mathjax.R b/R/mathjax.R
index 94962fe385..7acb711393 100644
--- a/R/mathjax.R
+++ b/R/mathjax.R
@@ -29,7 +29,8 @@ mathjax_cdn <- function() {
   htmltools::htmlDependency(
     name = "mathjax",
     version = "2.7.4",
-    src = c(file = depPath("mathjax")),
+    package = "plotly",
+    src = dependency_dir("mathjax"),
     script = "cdn.js"
   )
 }
diff --git a/R/orca.R b/R/orca.R
index 546160cfd7..c2761d79b4 100644
--- a/R/orca.R
+++ b/R/orca.R
@@ -73,7 +73,11 @@ orca <- function(p, file = "plot.png", format = tools::file_ext(file),
   
   # find the relevant plotly.js bundle
   plotlyjs <- plotlyjsBundle(b)
-  plotlyjs_file <- file.path(plotlyjs$src$file, plotlyjs$script)
+  plotlyjs_path <- file.path(plotlyjs$src$file, plotlyjs$script)
+  # package field means src file path should be relative to pkg dir
+  if (!is.null(plotlyjs$package)) {
+    plotlyjs_path <- system.file(plotlyjs_path, package = plotlyjs$package)
+  }
   
   tmp <- tempfile(fileext = ".json")
   cat(to_JSON(b$x[c("data", "layout")]), file = tmp)
@@ -82,7 +86,7 @@ orca <- function(p, file = "plot.png", format = tools::file_ext(file),
     "graph", tmp, 
     "-o", file,
     "--format", format,
-    "--plotlyjs", plotlyjs_file,
+    "--plotlyjs", plotlyjs_path,
     if (debug) "--debug",
     if (verbose) "--verbose",
     if (safe) "--safe-mode",
@@ -143,12 +147,16 @@ orca_serve <- function(port = 5151, mathjax = FALSE, safe = FALSE, request_limit
   
   # use main bundle since any plot can be thrown at the server
   plotlyjs <- plotlyMainBundle()
-  plotlyjs_file <- file.path(plotlyjs$src$file, plotlyjs$script)
+  plotlyjs_path <- file.path(plotlyjs$src$file, plotlyjs$script)
+  # package field means src file path should be relative to pkg dir
+  if (!is.null(plotlyjs$package)) {
+    plotlyjs_path <- system.file(plotlyjs_path, package = plotlyjs$package)
+  }
   
   args <- c(
     "serve",
     "-p", port,
-    "--plotly", plotlyjs_file,
+    "--plotly", plotlyjs_path,
     if (safe) "--safe-mode",
     if (orca_version() >= "1.1.1") "--graph-only",
     if (keep_alive) "--keep-alive",
diff --git a/R/partial_bundles.R b/R/partial_bundles.R
index 9e128c7a35..6ddd81c37a 100644
--- a/R/partial_bundles.R
+++ b/R/partial_bundles.R
@@ -139,6 +139,8 @@ verify_partial_bundle <- function(p) {
     if (!file.exists(tmpfile)) {
       curl::curl_download(paste0("https://cdn.plot.ly/", bundle_script), tmpfile)
     }
+    # file src is no longer in plotly's path (it's a temp file)
+    p$dependencies[[idx]]$package <- NULL
   }
   
   p
diff --git a/R/plotly.R b/R/plotly.R
index e07de467ae..cadd340c64 100644
--- a/R/plotly.R
+++ b/R/plotly.R
@@ -434,8 +434,10 @@ as_widget <- function(x, ...) {
 
 typedArrayPolyfill <- function() {
   htmltools::htmlDependency(
-    "typedarray", "0.1",
-    src = depPath("typedarray"),
+    name = "typedarray", 
+    version = "0.1",
+    package = "plotly",
+    src = dependency_dir("typedarray"),
     script = "typedarray.min.js",
     all_files = FALSE
   )
@@ -445,9 +447,10 @@ typedArrayPolyfill <- function() {
 # and bundle size at print time.
 plotlyMainBundle <- function() {
   htmltools::htmlDependency(
-    "plotly-main", 
+    name = "plotly-main", 
     version = "1.41.3",
-    src = depPath("plotlyjs"),
+    package = "plotly",
+    src = dependency_dir("plotlyjs"),
     script = "plotly-latest.min.js",
     all_files = FALSE
   )
@@ -455,9 +458,10 @@ plotlyMainBundle <- function() {
 
 plotlyHtmlwidgetsCSS <- function() {
   htmltools::htmlDependency(
-    "plotly-htmlwidgets-css", 
+    name = "plotly-htmlwidgets-css", 
     version = plotlyMainBundle()$version,
-    src = depPath("plotlyjs"),
+    package = "plotly",
+    src = dependency_dir("plotlyjs"),
     stylesheet = "plotly-htmlwidgets.css",
     all_files = FALSE
   )
@@ -468,8 +472,8 @@ locale_dependency <- function(locale) {
     stop("locale must be a character string (vector of length 1)", call. = FALSE)
   }
   
-  locale_dir <- depPath("plotlyjs", "locales")
-  locales_all <- sub("\\.js$", "", list.files(locale_dir))
+  locale_dir <- dependency_dir("plotlyjs", "locales")
+  locales_all <- sub("\\.js$", "", list.files(system.file(locale_dir, package = "plotly")))
   if (!tolower(locale) %in% locales_all) {
     stop(
       "Invalid locale: '", locale, "'.\n\n",
@@ -491,6 +495,7 @@ locale_dependency <- function(locale) {
   htmltools::htmlDependency(
     name = paste0("plotly-locale-", locale),
     version = plotlyMainBundle()$version,
+    package = "plotly",
     src = list(file = locale_dir),
     script = tolower(scripts),
     all_files = FALSE