diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/KeysController.java b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/KeysController.java
index dafea9314..62ba345f5 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/KeysController.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/KeysController.java
@@ -409,35 +409,6 @@ public class KeysController {
     return new PreKeyResponse(identityKey, responseItems);
   }
 
-  @PUT
-  @Path("/signed")
-  @Consumes(MediaType.APPLICATION_JSON)
-  @Operation(summary = "Upload a new signed prekey",
-      description = """
-          Upload a new signed elliptic-curve prekey for this device. Deprecated; use PUT /v2/keys instead.
-      """)
-  @ApiResponse(responseCode = "200", description = "Indicates that new prekey was successfully stored.")
-  @ApiResponse(responseCode = "401", description = "Account authentication check failed.")
-  @ApiResponse(responseCode = "422", description = "Invalid request format.")
-  // TODO Remove this endpoint on or after 2024-05-24
-  @Deprecated(forRemoval = true)
-  public CompletableFuture<Response> setSignedKey(
-      @ReadOnly @Auth final AuthenticatedAccount auth,
-      @HeaderParam(HttpHeaders.USER_AGENT) @Nullable final String userAgent,
-      @Valid final ECSignedPreKey signedPreKey,
-      @QueryParam("identity") @DefaultValue("aci") final IdentityType identityType) {
-
-    final UUID identifier = auth.getAccount().getIdentifier(identityType);
-    final byte deviceId = auth.getAuthenticatedDevice().getId();
-
-    if (!PreKeySignatureValidator.validatePreKeySignatures(auth.getAccount().getIdentityKey(identityType), List.of(signedPreKey), userAgent, "set-signed-pre-key")) {
-      throw new WebApplicationException("Invalid signature", 422);
-    }
-
-    return keysManager.storeEcSignedPreKeys(identifier, deviceId, signedPreKey)
-        .thenApply(Util.ASYNC_EMPTY_RESPONSE);
-  }
-
   private List<Device> parseDeviceId(String deviceId, Account account) {
     if (deviceId.equals("*")) {
       return account.getDevices();
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/controllers/KeysControllerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/controllers/KeysControllerTest.java
index 728c68925..c125e0840 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/controllers/KeysControllerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/controllers/KeysControllerTest.java
@@ -326,54 +326,6 @@ class KeysControllerTest {
     verify(KEYS).getPqCount(AuthHelper.VALID_UUID, SAMPLE_DEVICE_ID);
   }
 
-  @Test
-  void putSignedPreKeyV2() {
-    final ECSignedPreKey signedPreKey = KeysHelper.signedECPreKey(9998, AuthHelper.VALID_IDENTITY_KEY_PAIR);
-
-    try (final Response response = resources.getJerseyTest()
-                                 .target("/v2/keys/signed")
-                                 .request()
-                                 .header("Authorization", AuthHelper.getAuthHeader(AuthHelper.VALID_UUID, AuthHelper.VALID_PASSWORD))
-                                 .put(Entity.entity(signedPreKey, MediaType.APPLICATION_JSON_TYPE))) {
-
-      assertThat(response.getStatus()).isEqualTo(204);
-      verify(KEYS).storeEcSignedPreKeys(AuthHelper.VALID_UUID, AuthHelper.VALID_DEVICE.getId(), signedPreKey);
-    }
-  }
-
-  @Test
-  void putPhoneNumberIdentitySignedPreKeyV2() {
-    final ECSignedPreKey pniSignedPreKey = KeysHelper.signedECPreKey(9998, AuthHelper.VALID_PNI_IDENTITY_KEY_PAIR);
-
-    try (final Response response = resources.getJerseyTest()
-        .target("/v2/keys/signed")
-        .queryParam("identity", "pni")
-        .request()
-        .header("Authorization", AuthHelper.getAuthHeader(AuthHelper.VALID_UUID, AuthHelper.VALID_PASSWORD))
-        .put(Entity.entity(pniSignedPreKey, MediaType.APPLICATION_JSON_TYPE))) {
-
-      assertThat(response.getStatus()).isEqualTo(204);
-      verify(KEYS).storeEcSignedPreKeys(AuthHelper.VALID_PNI, AuthHelper.VALID_DEVICE.getId(), pniSignedPreKey);
-    }
-  }
-
-  @ParameterizedTest
-  @EnumSource(IdentityType.class)
-  void putSignedPreKeyV2BadSignature(final IdentityType identityType) {
-    final ECSignedPreKey signedPreKey = KeysHelper.signedECPreKey(9998, Curve.generateKeyPair());
-
-    try (final Response response = resources.getJerseyTest()
-        .target("/v2/keys/signed")
-        .queryParam("identity", identityType.name().toLowerCase())
-        .request()
-        .header("Authorization", AuthHelper.getAuthHeader(AuthHelper.VALID_UUID, AuthHelper.VALID_PASSWORD))
-        .put(Entity.entity(signedPreKey, MediaType.APPLICATION_JSON_TYPE))) {
-
-      assertThat(response.getStatus()).isEqualTo(422);
-      verify(KEYS, never()).storeEcSignedPreKeys(any(), anyByte(), any());
-    }
-  }
-
   @Test
   void validSingleRequestTestV2() {
     PreKeyResponse result = resources.getJerseyTest()