diff --git a/pkgs/development/python-modules/seaborn/default.nix b/pkgs/development/python-modules/seaborn/default.nix
index c190093bb30f..8d94264721b7 100644
--- a/pkgs/development/python-modules/seaborn/default.nix
+++ b/pkgs/development/python-modules/seaborn/default.nix
@@ -1,4 +1,5 @@
 { lib
+, stdenv
 , buildPythonPackage
 , fetchPypi
 , matplotlib
@@ -33,16 +34,19 @@ buildPythonPackage rec {
   ];
 
   disabledTests = [
-    # Tests fail because of AttributeError:...
+    # incompatible with matplotlib 3.5
     "TestKDEPlotBivariate"
     "TestBoxPlotter"
     "TestCatPlot"
     "TestKDEPlotUnivariate"
     "test_with_rug"
     "test_bivariate_kde_norm"
+  ] ++ lib.optionals (!stdenv.hostPlatform.isx86) [
+    # overly strict float tolerances
+    "TestDendrogram"
   ];
 
-  pythonImportsCheck= [
+  pythonImportsCheck = [
     "seaborn"
   ];