diff --git a/pkgs/development/libraries/openssl/default.nix b/pkgs/development/libraries/openssl/default.nix
index 29656f7ef88..c78cd25e128 100644
--- a/pkgs/development/libraries/openssl/default.nix
+++ b/pkgs/development/libraries/openssl/default.nix
@@ -2,7 +2,7 @@
 , withCryptodev ? false, cryptodevHeaders }:
 
 let
-  name = "openssl-1.0.1j";
+  name = "openssl-1.0.1k";
 
   opensslCrossSystem = stdenv.lib.attrByPath [ "openssl" "system" ]
     (throw "openssl needs its platform name cross building" null)
@@ -19,8 +19,6 @@ let
       # cannot be overriden per-process.  For security, the
       # environment variable is ignored for setuid binaries.
       ./cert-file.patch
-      # Remove the compilation time from the library
-      ./no-date-in-library.patch
     ]
 
     ++ stdenv.lib.optionals (isCross && opensslCrossSystem == "hurd-x86")
@@ -45,7 +43,7 @@ stdenv.mkDerivation {
       "http://www.openssl.org/source/${name}.tar.gz"
       "http://openssl.linux-mirror.org/source/${name}.tar.gz"
     ];
-    sha256 = "1wzdaiix40lz0rsyf51qv0wiq4ywp29j5ni0xzl06vxsi63wlq0v";
+    sha256 = "0754wzmzr90hiiqs5cy6g3cf8as75ljkhppgyirfg26hpapax7wg";
   };
 
   patches = patchesCross false;
diff --git a/pkgs/development/libraries/openssl/no-date-in-library.patch b/pkgs/development/libraries/openssl/no-date-in-library.patch
deleted file mode 100644
index 3eb501dfa02..00000000000
--- a/pkgs/development/libraries/openssl/no-date-in-library.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -ur openssl-1.0.1f.orig/crypto/Makefile openssl-1.0.1f/crypto/Makefile
---- openssl-1.0.1f.orig/crypto/Makefile	2014-01-06 15:35:56.000000000 +0100
-+++ openssl-1.0.1f/crypto/Makefile	2014-04-09 13:05:28.071346204 +0200
-@@ -57,7 +57,7 @@
- 	echo '  /* auto-generated by crypto/Makefile for crypto/cversion.c */'; \
- 	echo '  #define CFLAGS "$(CC) $(CFLAG)"'; \
- 	echo '  #define PLATFORM "$(PLATFORM)"'; \
--	echo "  #define DATE \"`LC_ALL=C LC_TIME=C date`\""; \
-+	echo "  #define DATE \"Thu Jan  1 00:00:01 UTC 1970\""; \
- 	echo '#endif' ) >buildinf.h
- 
- x86cpuid.s:	x86cpuid.pl perlasm/x86asm.pl