diff --git a/src/action-common.ts b/src/action-common.ts
index 516325926..743ad9da5 100644
--- a/src/action-common.ts
+++ b/src/action-common.ts
@@ -1,4 +1,3 @@
-import * as fs from "fs";
 import * as os from "os";
 
 import * as core from "@actions/core";
@@ -84,7 +83,7 @@ export type ActionState<Fs extends readonly StateFeature[]> = FieldsOf<Fs>;
  * Each Action can then augment the `state` further if additional features are required.
  */
 export type ActionMain = (
-  state: ActionState<["Base", "FS", "Logger", "Env", "Actions"]>,
+  state: ActionState<["Base", "Logger", "Env", "Actions"]>,
 ) => Promise<void>;
 
 /** A specification for a CodeQL Action step. */
@@ -115,7 +114,6 @@ export async function runInActions(action: Action) {
       platform: process.platform,
       arch: process.arch,
       osRelease: os.release(),
-      fs,
       logger,
       env,
       actions: actionsEnv,
diff --git a/src/init-action.ts b/src/init-action.ts
index a91562611..3445632ed 100644
--- a/src/init-action.ts
+++ b/src/init-action.ts
@@ -199,7 +199,7 @@ async function sendCompletedStatusReport(
 }
 
 async function run(
-  actionState: ActionState<["Base", "Logger", "Env", "Actions", "FS"]>,
+  actionState: ActionState<["Base", "Logger", "Env", "Actions"]>,
 ) {
   // To capture errors appropriately, keep as much code within the try-catch as
   // possible, and only use safe functions outside.