diff --git a/pkgs/development/libraries/zookeeper_mt/default.nix b/pkgs/development/libraries/zookeeper_mt/default.nix
index 8b9f6b70cfe5..6a52f6a41d53 100644
--- a/pkgs/development/libraries/zookeeper_mt/default.nix
+++ b/pkgs/development/libraries/zookeeper_mt/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "mirror://apache/zookeeper/${zookeeper.pname}-${version}/apache-${zookeeper.pname}-${version}.tar.gz";
-    sha512 = "90643aa0ae1b9bf1f5e137dfbcee7e3c53db15e5038d7e406e4a1c345d6a0531bf7afa2b03f99d419ebd0fe892f127a7abfe582f786034ba823e53a0a9246bfb";
+    sha512 = "sha512-ttYbATvfe+uRYhQWfeG1WGXl5GOztcrITfl/4EQierAzSaDvTmVxSb582hYQOdBpxw2QrVbIdnTm3/Xt4ifecg==";
   };
 
   sourceRoot = "apache-${zookeeper.pname}-${version}/zookeeper-client/zookeeper-client-c";
diff --git a/pkgs/servers/zookeeper/default.nix b/pkgs/servers/zookeeper/default.nix
index 41603da33be3..c8ef0cb68d41 100644
--- a/pkgs/servers/zookeeper/default.nix
+++ b/pkgs/servers/zookeeper/default.nix
@@ -6,11 +6,11 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "zookeeper";
-  version = "3.6.3";
+  version = "3.7.1";
 
   src = fetchurl {
     url = "mirror://apache/zookeeper/${pname}-${version}/apache-${pname}-${version}-bin.tar.gz";
-    sha512 = "3f7b1b7d9cf5647d52ad0076c922e108fa956e986b5624667c493cf6d8ff09d3ca88f623c79a799fe49c72e868cb3c9d0f77cb69608de74a183b2cbad10bc827";
+    sha512 = "sha512-kQNiilB0X6GiibymZv2kqcCOwXxVzxPmaIfnunbpPbrmCh8f/WwQeYvjoWBpNE7LwAzrspvwPZzXCWzNCY7QEQ==";
   };
 
   nativeBuildInputs = [ makeWrapper ];