diff --git a/inst/ShinyGR/server.R b/inst/ShinyGR/server.R
index 8ea383f71e43151dbd686a3ecf30998ff321f522..3a2fdbf2363ce40577bd9b0e07d3165f5cf268a5 100644
--- a/inst/ShinyGR/server.R
+++ b/inst/ShinyGR/server.R
@@ -176,7 +176,7 @@ shinyServer(function(input, output, session) {
       CAL_click$valueButton <- CAL_click$valueButton - 1
       CAL_click$valueButton <- ifelse(CAL_click$valueButton < -1, -1, CAL_click$valueButton)
       if (CAL_click$valueButton < 0) {
-        updateActionButton(session, inputId = "CalButton", label = "Run", icon = icon("sync"))
+        updateActionButton(session, inputId = "CalButton", label = "Run", icon = icon("arrows-rotate"))
         if (!getPrep()$isUngauged) {
           shinyjs::enable("CalButton")
         }
diff --git a/inst/ShinyGR/ui.R b/inst/ShinyGR/ui.R
index 3d8444f77abd85ab57ce79f0db393e92ee21a281..29ba3e1b6598a12e00226318ca87b16427aeee10 100644
--- a/inst/ShinyGR/ui.R
+++ b/inst/ShinyGR/ui.R
@@ -132,7 +132,7 @@ navbarPage(title       = div("airGRteaching",
                                                                                choices = c("NSE [Q]", "NSE [sqrt(Q)]", "NSE [1/Q]",
                                                                                            "KGE [Q]", "KGE [sqrt(Q)]", "KGE [1/Q]"))),
                                                  column(width = 6, actionButton("CalButton", label = "Run", width = "100%",
-                                                                                icon = icon("sync"),
+                                                                                icon = icon("arrows-rotate"),
                                                                                 style = ifelse(.GlobalEnv$.ShinyGR.args$theme != "Cerulean",
                                                                                                "color:#ffffff; background-color:#A4C400; border-color:#A4C400; margin-top:25px; padding:6px;",
                                                                                                "color:#565656; background-color:#ECF0F1; border-color:#DCDCDC; margin-top:25px; padding:6px;")))
@@ -219,7 +219,7 @@ navbarPage(title       = div("airGRteaching",
                     )
            ),
            tabPanel(title = "Summary sheet",
-                    icon  = icon("th"),
+                    icon  = icon("table-cells"),
                     sidebarLayout(position = "left",
                                   sidebarPanel(width = 3,
                                                h4("Choose a dataset:"),
@@ -230,7 +230,7 @@ navbarPage(title       = div("airGRteaching",
                     )
            ),
            navbarMenu(title = "Help",
-                      icon  = icon("question-circle"),
+                      icon  = icon("circle-question"),
                       tabPanel(title = "Get started",
                                icon = icon("cog", lib = "glyphicon"),
                                fluidRow(column(width = 12, includeMarkdown("www/tab_fun.md")))