diff --git a/DESCRIPTION b/DESCRIPTION
index c213e616..86719ef6 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: TreeDist
 Type: Package
 Title: Calculate and Map Distances Between Phylogenetic Trees
-Version: 2.11.0
+Version: 2.11.1
 Authors@R: c(person("Martin R.", "Smith",
                     email = "martin.smith@durham.ac.uk", 
                     role = c("aut", "cre", "cph", "prg"), 
diff --git a/NEWS.md b/NEWS.md
index 96d9b193..38a3c936 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,8 @@
+# TreeDist 2.11.1 (2025-10-13)
+
+- Improve robustness of `SpectralEigens()` tests.
+
+
 # TreeDist 2.11.0 (2025-09-26)
 
 - `HierarchicalMutualInformation()` calculates the information shared between
diff --git a/R/spectral_clustering.R b/R/spectral_clustering.R
index fe5ff77e..a113ac82 100644
--- a/R/spectral_clustering.R
+++ b/R/spectral_clustering.R
@@ -77,5 +77,5 @@ SpectralEigens <- function(D, nn = 10L, nEig = 2L) {
 #' @rdname SpectralEigens
 SpectralClustering <- function(D, nn = 10L, nEig = 2L) {
   .Deprecated("SpectralEigens") # 2021-07
-  SpectralEigens(D, nn, nEig)
+  SpectralEigens(D = D, nn = nn, nEig = nEig)
 }
diff --git a/tests/testthat/test-spectral_clustering.R b/tests/testthat/test-spectral_clustering.R
index 35c4947b..a3d3defd 100644
--- a/tests/testthat/test-spectral_clustering.R
+++ b/tests/testthat/test-spectral_clustering.R
@@ -9,7 +9,10 @@ test_that("Spectral clustering works", {
   expect_equal(dim(allEig), c(40, 40))
   expect_equal(abs(SpectralEigens(d, nEig = 2)), abs(allEig[, 40:39]),
                tolerance = sqrt(.Machine[["double.eps"]]))
-  
-  expect_warning(expect_equal(SpectralClustering(d, nEig = Inf), allEig),
+
+  expect_warning(deprecated <- SpectralClustering(d, nEig = Inf),
                  "'SpectralClustering' is deprecated.")
+  # Can't check raw equality because signs may flip
+  expect_true(all.equal(crossprod(deprecated), crossprod(allEig),
+                        tolerance = sqrt(.Machine[["double.eps"]])))
 })