diff --git a/tests/testthat/test-compare.R b/tests/testthat/test-compare.R
index 067ab28..d8aa1f0 100644
--- a/tests/testthat/test-compare.R
+++ b/tests/testthat/test-compare.R
@@ -52,7 +52,7 @@ test_that("pacs::pac_compare_news", {
 
 test_that("pacs::pac_compare_news online", {
   skip_if_offline()
-  expect_true(length(pac_compare_news("dplyr", "0.7.1", "1.0.0")) == 947)
+  expect_true(length(pac_compare_news("dplyr", "0.7.1", "1.0.0")) > 0)
   expect_true(length(pac_compare_news("memoise", old = "1.0.0")) > 0)
   expect_true(length(pac_compare_news("memoise", "1.0.0", "2.0.0")) > 0)
 })
diff --git a/tests/testthat/test-description.R b/tests/testthat/test-description.R
index 26d0956..0f89059 100644
--- a/tests/testthat/test-description.R
+++ b/tests/testthat/test-description.R
@@ -5,7 +5,7 @@ test_that("pacs::pac_description", {
     pac_description("memoise", local = TRUE)$Version,
     pac_description("memoise", local = FALSE)$Version
   ) %in% c(0, -1))
-  expect_identical(pac_description("dplyr", "1.1.1.1"), NA)
+  expect_identical(pac_description("dplyr", "10.1.1.1"), NA)
   expect_identical(pac_description("WRONG"), NA)
   expect_identical(pac_description("WRONG", local = TRUE), NA)
   expect_identical(pac_description("dplyr", "0.0.0.1"), NA)
diff --git a/tests/testthat/test-news.R b/tests/testthat/test-news.R
index ed8b0eb..e08b624 100644
--- a/tests/testthat/test-news.R
+++ b/tests/testthat/test-news.R
@@ -1,5 +1,12 @@
-test_that("pacs::pac_news", {
+test_that("valid input pacs::pac_news", {
   skip_if_offline()
   expect_true(is.character(pac_news("dplyr", version = "0.8.0")))
   expect_true(is.character(pac_news("dplyr", at = as.Date("2019-02-01"))))
-})
\ No newline at end of file
+})
+
+test_that("invalid input pacs::pac_news", {
+  skip_if_offline()
+  expect_identical(pac_news("dplyr", version = "0.0.0.1"), NA)
+  expect_identical(pac_news("dplyr", version = "10.8.0.0"), NA)
+  expect_identical(pac_news("dplyr2", at = as.Date("2019-02-01")), NA)
+})