diff --git a/gnu/packages/python-crypto.scm b/gnu/packages/python-crypto.scm
index 3e7704bf48..4e1aec4e0a 100644
--- a/gnu/packages/python-crypto.scm
+++ b/gnu/packages/python-crypto.scm
@@ -226,6 +226,14 @@ Python interface around SSH networking concepts.")
                       "pytest"
                       "-vv"
                       "-k"
+                      "not test_multithreading_with_interrupts"
+                      ;; The following test fails and will be fixed in the
+                      ;; next release after v0.18.  See
+                      ;; <https://github.com/tlsfuzzer/python-ecdsa/issues/307>.
+                      "-k"
+                      "not test_add_different_scale_points"
+                      ;; The following test needs a KeyboardInterrupt to occur.
+                      "-k"
                       "not test_multithreading_with_interrupts"))))))
     (propagated-inputs
      (list python-six))