diff --git a/README.md b/README.md
index 7ad51b4c..cff549c4 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@
 | [Log](https://sleitnick.github.io/RbxUtil/api/Log) | `Log = "sleitnick/log@0.1.1"` | Log class for logging to PlayFab |
 | [Net](https://sleitnick.github.io/RbxUtil/api/Net) | `Net = "sleitnick/net@0.2.0"` | Static networking module |
 | [Option](https://sleitnick.github.io/RbxUtil/api/Option) | `Option = "sleitnick/option@1.0.5"` | Represent optional values in Lua |
-| [PID](https://sleitnick.github.io/RbxUtil/api/PID) | `PID = "sleitnick/pid@1.2.0"` | PID Controller class |
+| [PID](https://sleitnick.github.io/RbxUtil/api/PID) | `PID = "sleitnick/pid@1.2.1"` | PID Controller class |
 | [Quaternion](https://sleitnick.github.io/RbxUtil/api/Quaternion) | `Quaternion = "sleitnick/quaternion@0.2.3"` | Quaternion class |
 | [Sequent](https://sleitnick.github.io/RbxUtil/api/Sequent) | `Sequent = "sleitnick/sequent@0.1.0"` | Sequent class |
 | [Ser](https://sleitnick.github.io/RbxUtil/api/Ser) | `Ser = "sleitnick/ser@1.0.5"` | Ser class for serialization and deserialization |
diff --git a/modules/pid/index.d.ts b/modules/pid/index.d.ts
index fdb5d489..25fa9218 100644
--- a/modules/pid/index.d.ts
+++ b/modules/pid/index.d.ts
@@ -32,6 +32,7 @@ interface PID {
 	 *
 	 * @param setpoint The goal for the PID.
 	 * @param input The current input.
+	 * @param deltaTime Delta time.
 	 * @returns The updated output.
 	 */
 	Calculate(setpoint: number, input: number, deltaTime: number): number;
diff --git a/modules/pid/init.lua b/modules/pid/init.lua
index 93fadde7..6c041356 100644
--- a/modules/pid/init.lua
+++ b/modules/pid/init.lua
@@ -87,6 +87,7 @@ end
 --[=[
 	@param setpoint number -- The desired point to reach
 	@param input number -- The current inputted value
+	@param deltaTime number -- Delta time
 	@return output: number
 
 	Calculates the new output based on the setpoint and input. For example,
diff --git a/modules/pid/package.json b/modules/pid/package.json
index 99dc2ed8..0959d400 100644
--- a/modules/pid/package.json
+++ b/modules/pid/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@rbxutil/pid",
-	"version": "1.2.0",
+	"version": "1.2.1",
 	"main": "init.lua",
 	"repository": "github:Sleitnick/RbxUtil",
 	"license": "MIT",
diff --git a/modules/pid/wally.toml b/modules/pid/wally.toml
index fe39ac7a..32991217 100644
--- a/modules/pid/wally.toml
+++ b/modules/pid/wally.toml
@@ -1,7 +1,7 @@
 [package]
 name = "sleitnick/pid"
 description = "PID Controller class"
-version = "1.2.0"
+version = "1.2.1"
 license = "MIT"
 authors = ["Stephen Leitnick"]
 registry = "https://github.com/UpliftGames/wally-index"