diff --git a/DESCRIPTION b/DESCRIPTION
index 6edffb3f0..e91e0ef6b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -91,6 +91,7 @@ Suggests:
     logspline,
     MASS,
     mclust,
+    merDeriv,
     mgcv,
     metafor,
     NbClust,
@@ -119,4 +120,4 @@ Config/Needs/website:
     r-lib/pkgdown,
     easystats/easystatstemplate
 Config/rcmdcheck/ignore-inconsequential-notes: true
-Remotes: easystats/performance
+Remotes: easystats/performance, easystats/modelbased
diff --git a/tests/testthat/test-check_model.R b/tests/testthat/test-check_model.R
index 88729b64d..667ddff68 100644
--- a/tests/testthat/test-check_model.R
+++ b/tests/testthat/test-check_model.R
@@ -117,6 +117,7 @@ test_that("`check_model()` works if convergence issues", {
 test_that("`check_model()` works if convergence issues", {
   skip_on_cran()
   skip_if_not_installed("performance")
+  skip_if_not_installed("merDeriv")
   data(mtcars)
   m <- lm(mpg ~ wt + cyl + gear + disp, data = mtcars)
   set.seed(123)