diff --git a/api/config.lua b/api/config.lua
index 45131be2..0fda5d0a 100644
--- a/api/config.lua
+++ b/api/config.lua
@@ -637,5 +637,24 @@ function pfUI:MigrateConfig()
     end
   end
 
+  -- migrating animation_speed (> 3.1.2)
+  if checkversion(3, 1, 2) then
+    if tonumber(pfUI_config.unitframes.animation_speed) >= 13 then
+      pfUI_config.unitframes.animation_speed = "13"
+    elseif tonumber(pfUI_config.unitframes.animation_speed) >= 8 then
+      pfUI_config.unitframes.animation_speed = "8"
+    elseif tonumber(pfUI_config.unitframes.animation_speed) >= 5 then
+      pfUI_config.unitframes.animation_speed = "5"
+    elseif tonumber(pfUI_config.unitframes.animation_speed) >= 3 then
+      pfUI_config.unitframes.animation_speed = "3"
+    elseif tonumber(pfUI_config.unitframes.animation_speed) >= 2 then
+      pfUI_config.unitframes.animation_speed = "2"
+    elseif tonumber(pfUI_config.unitframes.animation_speed) >= 1 then
+      pfUI_config.unitframes.animation_speed = "1"
+    else
+      pfUI_config.unitframes.animation_speed = "5"
+    end
+  end
+
   pfUI_config.version = pfUI.version.string
 end
diff --git a/modules/gui.lua b/modules/gui.lua
index 4faf5c94..d2ea3abb 100644
--- a/modules/gui.lua
+++ b/modules/gui.lua
@@ -604,6 +604,15 @@ pfUI:RegisterModule("gui", function ()
     table.insert(dropdown_selection_fonts, "Fonts\\FZXHLJW.TTF:FZXHLJW")
   end
 
+  local dropdown_unitframes_animationspeed = {
+    "1:" .. T["Instant"],
+    "2:" .. T["Very Fast"],
+    "3:" .. T["Fast"],
+    "5:" .. T["Medium"],
+    "8:" .. T["Slow"],
+    "13:" .. T["Very Slow"],
+  }
+
   local dropdown_unitframes_text = {
     "none:" .. T["Disable"],
     "unit:" .. T["Unit String"],
@@ -873,7 +882,7 @@ pfUI:RegisterModule("gui", function ()
       CreateConfig(this, T["Custom Health Bar Color"], C.unitframes, "customcolor", "color")
       CreateConfig(this, T["Enable Custom Color Health Bar Background"], C.unitframes, "custombg", "checkbox")
       CreateConfig(this, T["Custom Health Bar Background Color"], C.unitframes, "custombgcolor", "color")
-      CreateConfig(this, T["Healthbar Animation Speed"], C.unitframes, "animation_speed")
+      CreateConfig(this, T["Healthbar Animation Speed"], C.unitframes, "animation_speed", "dropdown", dropdown_unitframes_animationspeed)
       CreateConfig(this, T["Portrait Alpha"], C.unitframes, "portraitalpha")
       CreateConfig(this, T["Always Use 2D Portraits"], C.unitframes, "always2dportrait", "checkbox")
       CreateConfig(this, T["Enable 2D Portraits As Fallback"], C.unitframes, "portraittexture", "checkbox")