diff --git a/packages/http/CHANGELOG.json b/packages/http/CHANGELOG.json
index b244f1b5280..b4c6c5418d5 100644
--- a/packages/http/CHANGELOG.json
+++ b/packages/http/CHANGELOG.json
@@ -1,6 +1,18 @@
 {
   "name": "@typespec/http",
   "entries": [
+    {
+      "version": "0.43.1",
+      "tag": "@typespec/http_v0.43.1",
+      "date": "Fri, 14 Apr 2023 15:09:01 GMT",
+      "comments": {
+        "patch": [
+          {
+            "comment": "**Fix** query format not accepting anything other than `csv` and `multi`"
+          }
+        ]
+      }
+    },
     {
       "version": "0.43.0",
       "tag": "@typespec/http_v0.43.0",
diff --git a/packages/http/CHANGELOG.md b/packages/http/CHANGELOG.md
index 7269fe28f41..81b45449866 100644
--- a/packages/http/CHANGELOG.md
+++ b/packages/http/CHANGELOG.md
@@ -1,6 +1,13 @@
 # Change Log - @typespec/http
 
-This log was last generated on Tue, 11 Apr 2023 18:49:17 GMT and should not be manually modified.
+This log was last generated on Fri, 14 Apr 2023 15:09:01 GMT and should not be manually modified.
+
+## 0.43.1
+Fri, 14 Apr 2023 15:09:01 GMT
+
+### Patches
+
+- **Fix** query format not accepting anything other than `csv` and `multi`
 
 ## 0.43.0
 Tue, 11 Apr 2023 18:49:17 GMT
diff --git a/packages/http/package.json b/packages/http/package.json
index 09afd8a08dc..76846deac35 100644
--- a/packages/http/package.json
+++ b/packages/http/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@typespec/http",
-  "version": "0.43.0",
+  "version": "0.43.1",
   "author": "Microsoft Corporation",
   "description": "TypeSpec HTTP protocol binding",
   "homepage": "https://github.com/Microsoft/typespec",
diff --git a/packages/http/src/decorators.ts b/packages/http/src/decorators.ts
index c7e5506ceaf..bfc5d4523a5 100644
--- a/packages/http/src/decorators.ts
+++ b/packages/http/src/decorators.ts
@@ -104,9 +104,7 @@ export function $query(
       }
       const format = queryNameOrOptions.properties.get("format")?.type;
       if (format?.kind === "String") {
-        if (format.value === "multi" || format.value === "csv") {
-          options.format = format.value;
-        }
+        options.format = format.value as any; // That value should have already been validated by the TypeSpec dec
       }
     }
   }
diff --git a/packages/http/test/http-decorators.test.ts b/packages/http/test/http-decorators.test.ts
index 129c9dc60a3..c43eae583ef 100644
--- a/packages/http/test/http-decorators.test.ts
+++ b/packages/http/test/http-decorators.test.ts
@@ -210,16 +210,19 @@ describe("http: decorators", () => {
       strictEqual(getQueryParamName(runner.program, select), "$select");
     });
 
-    it("override query with QueryOptions", async () => {
-      const { selects } = await runner.compile(`
-          @put op test(@test @query({name: "$select", format: "csv"}) selects: string[]): string;
-        `);
-      deepStrictEqual(getQueryParamOptions(runner.program, selects), {
-        type: "query",
-        name: "$select",
-        format: "csv",
+    describe("change format for array value", () => {
+      ["csv", "tsv", "ssv", "pipes"].forEach((format) => {
+        it(`set query format to "${format}"`, async () => {
+          const { selects } = await runner.compile(`
+            op test(@test @query({name: "$select", format: "${format}"}) selects: string[]): string;
+          `);
+          deepStrictEqual(getQueryParamOptions(runner.program, selects), {
+            type: "query",
+            name: "$select",
+            format,
+          });
+        });
       });
-      strictEqual(getQueryParamName(runner.program, selects), "$select");
     });
   });
 
diff --git a/packages/openapi/package.json b/packages/openapi/package.json
index 1567bd52dd7..d5aac2fa8a1 100644
--- a/packages/openapi/package.json
+++ b/packages/openapi/package.json
@@ -53,14 +53,14 @@
   ],
   "peerDependencies": {
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0"
   },
   "devDependencies": {
     "@types/mocha": "~10.0.0",
     "@types/node": "~18.11.9",
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0",
     "@typespec/eslint-config-typespec": "~0.6.0",
     "@typespec/library-linter": "~0.43.0",
diff --git a/packages/openapi3/package.json b/packages/openapi3/package.json
index 6d3ea160114..caa5abc47c6 100644
--- a/packages/openapi3/package.json
+++ b/packages/openapi3/package.json
@@ -57,7 +57,7 @@
   "peerDependencies": {
     "@typespec/versioning": "~0.43.0",
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0",
     "@typespec/openapi": "~0.43.0"
   },
@@ -66,7 +66,7 @@
     "@types/node": "~18.11.9",
     "@types/js-yaml": "~4.0.1",
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0",
     "@typespec/openapi": "~0.43.0",
     "@typespec/versioning": "~0.43.0",
diff --git a/packages/playground/package.json b/packages/playground/package.json
index 6e105e429e0..acf9b459764 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -43,7 +43,7 @@
   "dependencies": {
     "@typespec/versioning": "~0.43.0",
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0",
     "@typespec/openapi3": "~0.43.0",
     "@typespec/openapi": "~0.43.0",
diff --git a/packages/rest/package.json b/packages/rest/package.json
index 066a7b79393..3dbe9667a72 100644
--- a/packages/rest/package.json
+++ b/packages/rest/package.json
@@ -58,7 +58,7 @@
     "@types/mocha": "~10.0.0",
     "@types/node": "~18.11.9",
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/eslint-config-typespec": "~0.6.0",
     "@typespec/library-linter": "~0.43.0",
     "@typespec/eslint-plugin": "~0.43.0",
diff --git a/packages/samples/package.json b/packages/samples/package.json
index 5015a88f616..b8f0b5bc59d 100644
--- a/packages/samples/package.json
+++ b/packages/samples/package.json
@@ -36,7 +36,7 @@
   "dependencies": {
     "@typespec/versioning": "~0.43.0",
     "@typespec/compiler": "~0.43.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0",
     "@typespec/openapi": "~0.43.0",
     "@typespec/openapi3": "~0.43.0",
diff --git a/packages/website/package.json b/packages/website/package.json
index 0ec6d1c8d79..34c15914441 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -33,7 +33,7 @@
   "devDependencies": {
     "@typespec/ref-doc": "~0.1.0",
     "@typespec/spec": "0.1.0",
-    "@typespec/http": "~0.43.0",
+    "@typespec/http": "~0.43.1",
     "@typespec/rest": "~0.43.0",
     "@typespec/openapi": "~0.43.0",
     "@typespec/versioning": "~0.43.0",