diff --git a/tests/testthat/test-check_collinearity.R b/tests/testthat/test-check_collinearity.R
index a3ce2b54c..ea3dd56cd 100644
--- a/tests/testthat/test-check_collinearity.R
+++ b/tests/testthat/test-check_collinearity.R
@@ -216,7 +216,7 @@ test_that("check_collinearity, hurdle/zi models w/o zi-formula", {
 test_that("check_collinearity, invalid data", {
   dd <- data.frame(y = as.difftime(0:5, units = "days"))
   m1 <- lm(y ~ 1, data = dd)
-  expect_error(check_collinearity(m1), "Can't extract variance-covariance matrix")
+  expect_message(check_collinearity(m1), "Could not extract the variance-covariance")
 })
 
 test_that("check_collinearity, glmmTMB hurdle w/o zi", {
diff --git a/tests/testthat/test-check_model.R b/tests/testthat/test-check_model.R
index 2b1141d26..216062a08 100644
--- a/tests/testthat/test-check_model.R
+++ b/tests/testthat/test-check_model.R
@@ -40,7 +40,7 @@ test_that("`check_outliers()` works if convergence issues", {
 test_that("`check_model()` for invalid models", {
   dd <- data.frame(y = as.difftime(0:5, units = "days"))
   m1 <- lm(y ~ 1, data = dd)
-  expect_error(check_model(m1))
+  expect_message(check_model(m1), regex = "Date variables are not")
 })
 
 test_that("`check_model()` works for quantreg", {