diff --git a/tests/testthat/test-as_tibble-decay.R b/tests/testthat/test-as_tibble-decay.R
index d2248a6d..488ace63 100644
--- a/tests/testthat/test-as_tibble-decay.R
+++ b/tests/testthat/test-as_tibble-decay.R
@@ -8,6 +8,8 @@ test_that("as_tibble checks an attr to avoid decay to tibble", {
 })
 
 test_that("as_tibble ungroups if needed", {
+  # tsibble is doing some method piracy, and overwriting as_tibble.grouped_df as of 1.1.5
+  skip_if(packageVersion("tsibble") > "1.1.4")
   edf <- jhu_csse_daily_subset %>% group_by(geo_value)
   # removes the grouped_df class
   expect_identical(class(as_tibble(edf)), c("tbl_df", "tbl", "data.frame"))
diff --git a/tests/testthat/test-methods-epi_df.R b/tests/testthat/test-methods-epi_df.R
index b071d3ec..5ba66ed2 100644
--- a/tests/testthat/test-methods-epi_df.R
+++ b/tests/testthat/test-methods-epi_df.R
@@ -121,7 +121,18 @@ test_that("Correct metadata when subset includes some of other_keys", {
   # Including both original other_keys was already tested above
 })
 
-test_that("Metadata and grouping are dropped by `as_tibble`", {
+test_that("Metadata is dropped by `as_tibble`", {
+  grouped_converted <- toy_epi_df %>%
+    group_by(geo_value) %>%
+    as_tibble()
+  expect_true(
+    !any(c("metadata") %in% names(attributes(grouped_converted)))
+  )
+})
+
+test_that("Grouping are dropped by `as_tibble`", {
+  # tsibble is doing some method piracy, and overwriting as_tibble.grouped_df as of 1.1.5
+  skip_if(packageVersion("tsibble") > "1.1.4")
   grouped_converted <- toy_epi_df %>%
     group_by(geo_value) %>%
     as_tibble()