diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 20f1adb4..ccb7832b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
 
       - name: luacheck
         run: |
-          luarocks install luacheck 1.1.1
+          luarocks install luacheck 1.2.0
           make lint
 
   style:
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9d8ff48c..8a759d40 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,17 +6,38 @@ Thank you for your contribution!
 
 Code is formatted using *stylua* and linted using *luacheck*.
 
-You can install these with:
+### stylua
+
+Install via your OS package manager e.g. *Arch Linux*:
+
+```sh
+pacman -S stylua
+```
+
+or using cargo:
 
 ```sh
 cargo install stylua
-luarocks install luacheck
+```
+
+### luacheck
+
+Install using luarocks (preferred):
+
+```sh
+luarocks install --local luacheck
 ```
 
 or via your OS package manager e.g. *Arch Linux*:
 
 ```sh
-pacman -S stylua luacheck
+pacman -S luacheck
+```
+
+If you experience `luarocks` dependency issues installing `luacheck`, you may need to set an older lua version e.g.
+
+```sh
+luarocks config --local lua_version 5.1
 ```
 
 ## Adding icons
diff --git a/lua/nvim-web-devicons/filetypes.lua b/lua/nvim-web-devicons/filetypes.lua
index 3d80f0a7..cfaddfad 100644
--- a/lua/nvim-web-devicons/filetypes.lua
+++ b/lua/nvim-web-devicons/filetypes.lua
@@ -55,6 +55,7 @@ return {
   ["elf"] = "elf",
   ["elixir"] = "ex",
   ["elm"] = "elm",
+  ["env"] = "env",
   ["epuppet"] = "epp",
   ["erlang"] = "erl",
   ["eruby"] = "erb",
@@ -75,6 +76,7 @@ return {
   ["gitconfig"] = ".gitconfig",
   ["gitignore"] = ".gitignore",
   ["glb"] = "glb",
+  ["gleam"] = "gleam",
   ["glsl"] = "glsl",
   ["go"] = "go",
   ["godot"] = "godot",