diff --git a/static/js/filter.js b/static/js/filter.js
index 5cce573d7b..d9e651960c 100644
--- a/static/js/filter.js
+++ b/static/js/filter.js
@@ -386,10 +386,9 @@ class Filter {
     }
 
     operands(operator) {
-        return _.chain(this._operators)
+        return this._operators
             .filter((elem) => !elem.negated && elem.operator === operator)
-            .map((elem) => elem.operand)
-            .value();
+            .map((elem) => elem.operand);
     }
 
     has_negated_operand(operator, operand) {
diff --git a/static/js/portico/team.js b/static/js/portico/team.js
index c158a4dcd6..8a798a2511 100644
--- a/static/js/portico/team.js
+++ b/static/js/portico/team.js
@@ -60,7 +60,7 @@ function get_display_name(contributor) {
 //   - Display full name instead of GitHub username.
 export default function render_tabs() {
     const template = _.template($("#contributors-template").html());
-    const total_tab_html = _.chain(contributors_list)
+    const total_tab_html = contributors_list
         .map((c) => ({
             name: get_display_name(c),
             github_username: c.github_username,
@@ -68,10 +68,8 @@ export default function render_tabs() {
             profile_url: get_profile_url(c),
             commits: calculate_total_commits(c),
         }))
-        .sortBy("commits")
-        .reverse()
+        .sort((a, b) => (a.commits < b.commits ? 1 : a.commits > b.commits ? -1 : 0))
         .map((c) => template(c))
-        .value()
         .join("");
 
     $("#tab-total").html(total_tab_html);
@@ -86,10 +84,11 @@ export default function render_tabs() {
 
         $("#" + tab_name).on("click", () => {
             if (!loaded_repos.includes(repo_name)) {
-                const html = _.chain(contributors_list)
-                    .filter(repo_name)
-                    .sortBy(repo_name)
-                    .reverse()
+                const html = contributors_list
+                    .filter((c) => c[repo_name])
+                    .sort((a, b) =>
+                        a[repo_name] < b[repo_name] ? 1 : a[repo_name] > b[repo_name] ? -1 : 0,
+                    )
                     .map((c) =>
                         template({
                             name: get_display_name(c),
@@ -99,7 +98,6 @@ export default function render_tabs() {
                             commits: c[repo_name],
                         }),
                     )
-                    .value()
                     .join("");
 
                 $("#tab-" + tab_name).html(html);
diff --git a/static/js/ui_init.js b/static/js/ui_init.js
index aa29d3d286..e4c8266db5 100644
--- a/static/js/ui_init.js
+++ b/static/js/ui_init.js
@@ -231,7 +231,10 @@ exports.initialize_kitchen_sink_stuff = function () {
                     selected_id_from_idx: messages[event.msg_list.selected_idx()].id,
                     msg_list_sorted: _.isEqual(
                         messages.map((message) => message.id),
-                        _.chain(current_msg_list.all_messages()).pluck("id").clone().value().sort(),
+                        current_msg_list
+                            .all_messages()
+                            .map((message) => message.id)
+                            .sort(),
                     ),
                     found_in_dom: row_from_dom.length,
                 });