diff --git a/build.gradle b/build.gradle
index 77998bae4..33a414ab9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -122,7 +122,7 @@ dependencies {
 
     deployerJars "org.apache.maven.wagon:wagon-ssh:3.0.0"
 
-    cctJavadoc 'cc.tweaked:cct-javadoc:1.1.0'
+    cctJavadoc 'cc.tweaked:cct-javadoc:1.2.1'
 }
 
 // Compile tasks
diff --git a/doc/stub/http.lua b/doc/stub/http.lua
index 4be7a4180..6854ac9ea 100644
--- a/doc/stub/http.lua
+++ b/doc/stub/http.lua
@@ -1,8 +1,6 @@
 --- The http library allows communicating with web servers, sending and
 -- receiving data from them.
 --
--- #### `http_check` event
---
 -- @module http
 
 --- Asynchronously make a HTTP request to the given url.
diff --git a/src/main/java/dan200/computercraft/shared/computer/apis/CommandAPI.java b/src/main/java/dan200/computercraft/shared/computer/apis/CommandAPI.java
index fd310da23..ad85cbe79 100644
--- a/src/main/java/dan200/computercraft/shared/computer/apis/CommandAPI.java
+++ b/src/main/java/dan200/computercraft/shared/computer/apis/CommandAPI.java
@@ -116,7 +116,6 @@ public class CommandAPI implements ILuaAPI
      * @param command The command to execute.
      * @return The "task id". When this command has been executed, it will queue a `task_complete` event with a matching id.
      * @throws LuaException (hidden) If the task cannot be created.
-     * @cc.tparam string command The command to execute.
      * @cc.usage Asynchronously sets the block above the computer to stone.
      * <pre>
      * commands.execAsync("~ ~1 ~ minecraft:stone")
diff --git a/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/DiskDrivePeripheral.java b/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/DiskDrivePeripheral.java
index dd15192db..bcf7dc82e 100644
--- a/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/DiskDrivePeripheral.java
+++ b/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/DiskDrivePeripheral.java
@@ -140,7 +140,8 @@ public class DiskDrivePeripheral implements IPeripheral
     /**
      * Returns the title of the inserted audio disk.
      *
-     * @return The title of the audio, or {@code nil} if no audio disk is inserted.
+     * @return The title of the audio, or {@code false} if no audio disk is inserted.
+     * @cc.treturn string|nil|false The title of the audio, {@code false} if no disk is inserted, or {@code nil} if the disk has no audio.
      */
     @LuaFunction
     @Nullable