diff --git a/pkgs/development/python-modules/datrie/default.nix b/pkgs/development/python-modules/datrie/default.nix
index eb654c65077..7cb30937e0d 100644
--- a/pkgs/development/python-modules/datrie/default.nix
+++ b/pkgs/development/python-modules/datrie/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ stdenv, buildPythonPackage, fetchPypi, fetchpatch
 , cython, pytest, pytestrunner, hypothesis }:
 
 buildPythonPackage rec {
@@ -10,6 +10,14 @@ buildPythonPackage rec {
     sha256 = "08r0if7dry2q7p34gf7ffyrlnf4bdvnprxgydlfxgfnvq8f3f4bs";
   };
 
+  patches = [
+    # fix tests against recent hypothesis
+    (fetchpatch {
+      url = "https://github.com/pytries/datrie/commit/9b24b4c02783cdb703ac3f6c6d7d881db93166e0.diff";
+      sha256 = "1ql7jcf57q3x3fcbddl26y9kmnbnj2dv6ga8mwq94l4a3213j2iy";
+    })
+  ];
+
   nativeBuildInputs = [ cython ];
   buildInputs = [ pytest pytestrunner hypothesis ];