diff --git a/src/local-run.ts b/src/local-run.ts
index d231657..bb7f2f9 100644
--- a/src/local-run.ts
+++ b/src/local-run.ts
@@ -63,7 +63,6 @@ export const getCommandline = function (
     "--config=deno.jsonc",
     "--allow-read",
     "--allow-env",
-    "--allow-sys=osRelease",
   ];
 
   const allowedDomains = manifest.outgoing_domains ?? [];
diff --git a/src/tests/local-run.test.ts b/src/tests/local-run.test.ts
index 4b56fc2..193b322 100644
--- a/src/tests/local-run.test.ts
+++ b/src/tests/local-run.test.ts
@@ -43,7 +43,6 @@ Deno.test("getCommandline function", async (t) => {
       "--config=deno.jsonc",
       "--allow-read",
       "--allow-env",
-      "--allow-sys=osRelease",
       "--allow-net=example.com,slack.com,api.slack.com,files.slack.com,deno.land",
       FAKE_DENO_LAND_EXPECTED_MODULE,
     ]);
@@ -64,7 +63,6 @@ Deno.test("getCommandline function", async (t) => {
       "--config=deno.jsonc",
       "--allow-read",
       "--allow-env",
-      "--allow-sys=osRelease",
       "--unsafely-ignore-certificate-errors=dev1234.slack.com",
       "--allow-net=example.com,dev1234.slack.com,deno.land",
       FAKE_DENO_LAND_EXPECTED_MODULE,
@@ -86,7 +84,6 @@ Deno.test("getCommandline function", async (t) => {
       "--config=deno.jsonc",
       "--allow-read",
       "--allow-env",
-      "--allow-sys=osRelease",
       "--allow-net=slack.com,api.slack.com,files.slack.com,deno.land",
       FAKE_DENO_LAND_EXPECTED_MODULE,
     ]);
@@ -107,7 +104,6 @@ Deno.test("getCommandline function", async (t) => {
       "--config=deno.jsonc",
       "--allow-read",
       "--allow-env",
-      "--allow-sys=osRelease",
       "--allow-net=slack.com,api.slack.com,files.slack.com,deno.land",
       FAKE_FILE_EXPECTED_MODULE,
     ]);
@@ -128,7 +124,6 @@ Deno.test("getCommandline function", async (t) => {
       "--config=deno.jsonc",
       "--allow-read",
       "--allow-env",
-      "--allow-sys=osRelease",
       "--allow-net=example.com,slack.com,api.slack.com,files.slack.com,deno.land",
       "file:///local-run-function.ts",
     ]);
@@ -151,7 +146,6 @@ Deno.test("getCommandline function", async (t) => {
       "--config=deno.jsonc",
       "--allow-read",
       "--allow-env",
-      "--allow-sys=osRelease",
       "--allow-net=example.com,slack.com,api.slack.com,files.slack.com,deno.land",
       "file:///local-run-function.ts",
       "--mycustomflag",