diff --git a/tests/testthat/test-convertFlowCore.R b/tests/testthat/test-convertFlowCore.R
index f0abb33..a02b3aa 100644
--- a/tests/testthat/test-convertFlowCore.R
+++ b/tests/testthat/test-convertFlowCore.R
@@ -1,7 +1,9 @@
 context("convertFlowCore")
-library("flowCore")
-library("flowDensity")
 library("mockery")
+capture_warnings({
+  library("flowCore")
+  library("flowDensity")
+})
 
   test_that("rectangle gate is converted to flowCore", {
     content = '{"__v":0,"experimentId":"591a3b441d725115208a6fda","model":{"label":[150440.453608247,202688.886597938],"rectangle":{"y2":214399.74226804124,"x2":182870.51546391752,"y1":190978.03092783503,"x1":118010.39175257733},"locked":false},"gid":"592640a5a6a1d6256ec9b08a","xChannel":"FSC-A","type":"RectangleGate","name":"my gate","parentPopulationId":null,"yChannel":"FSC-W","_id":"592640aa298f1480900e10e4","tailoredPerFile":false,"id":"592640aa298f1480900e10e4"}'