diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index ca34fa6b58..65259f2499 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -19,8 +19,8 @@ parchmentMc = "1.19.4"
 asm = "9.3"
 autoService = "1.0.1"
 checkerFramework = "3.32.0"
-cobalt = "0.7.2"
-cobalt-next = "0.7.3" # Not a real version, used to constrain the version we accept.
+cobalt = "0.7.3"
+cobalt-next = "0.7.4" # Not a real version, used to constrain the version we accept.
 fastutil = "8.5.9"
 guava = "31.1-jre"
 jetbrainsAnnotations = "24.0.1"
diff --git a/illuaminate.sexp b/illuaminate.sexp
index 201807f325..d033e37127 100644
--- a/illuaminate.sexp
+++ b/illuaminate.sexp
@@ -83,23 +83,19 @@
       ;; isn't smart enough.
       sleep write printError read rs)))
 
-;; We disable the unused global linter in bios.lua and the APIs. In the future
-;; hopefully we'll get illuaminate to handle this.
+;; We disable the unused global linter in bios.lua, APIs and our documentation
+;; stubs docs. In the future hopefully we'll get illuaminate to handle this.
 (at
-  (/projects/core/src/main/resources/data/computercraft/lua/bios.lua
-   /projects/core/src/main/resources/data/computercraft/lua/rom/apis/)
-  (linters -var:unused-global)
-  (lint (allow-toplevel-global true)))
-
-;; Silence some variable warnings in documentation stubs.
-(at (/doc/stub/ /projects/forge/build/docs/luaJavadoc/)
+  (/doc/stub/
+   /projects/core/src/main/resources/data/computercraft/lua/bios.lua
+   /projects/core/src/main/resources/data/computercraft/lua/rom/apis/
+   /projects/forge/build/docs/luaJavadoc/)
   (linters -var:unused-global)
   (lint (allow-toplevel-global true)))
 
 ;; Suppress warnings for currently undocumented modules.
 (at
   (; Lua APIs
-   /projects/core/src/main/resources/data/computercraft/lua/rom/apis/io.lua
    /projects/core/src/main/resources/data/computercraft/lua/rom/apis/window.lua)
 
   (linters -doc:undocumented -doc:undocumented-arg -doc:undocumented-return))
diff --git a/projects/core/src/main/resources/data/computercraft/lua/rom/modules/main/cc/audio/dfpwm.lua b/projects/core/src/main/resources/data/computercraft/lua/rom/modules/main/cc/audio/dfpwm.lua
index 1f89a8c40b..01ca95ee37 100644
--- a/projects/core/src/main/resources/data/computercraft/lua/rom/modules/main/cc/audio/dfpwm.lua
+++ b/projects/core/src/main/resources/data/computercraft/lua/rom/modules/main/cc/audio/dfpwm.lua
@@ -165,7 +165,7 @@ local function make_decoder()
     local low_pass_charge = 0
     local previous_charge, previous_bit = 0, false
 
-    return function (input, output)
+    return function (input)
         expect(1, input, "string")
 
         local output, output_n = {}, 0