diff --git a/rockspec/md5-1.3-1.rockspec b/rockspec/md5-1.3-1.rockspec
new file mode 100644
index 0000000..30b5c5f
--- /dev/null
+++ b/rockspec/md5-1.3-1.rockspec
@@ -0,0 +1,31 @@
+package = "MD5"
+version = "1.3-1"
+source = {
+   url = "https://github.com/keplerproject/md5/archive/1.3.tar.gz",
+   md5 = "17b773591141091a4104d5183aad134b",
+   dir = "md5-1.3",
+}
+description = {
+   summary = "Checksum library",
+   detailed = [[MD5 offers checksum facilities for Lua 5.X: a hash (digest) function, a pair crypt/decrypt based on MD5 and CFB, and a pair crypt/decrypt based on DES with 56-bit keys.]],
+   license = "MIT/X11",
+   homepage = "http://keplerproject.github.io/md5/",
+}
+dependencies = {
+   "lua >= 5.0"
+}
+build = {
+   type = "builtin",
+   modules = {
+      md5 = "src/md5.lua",
+      ["md5.core"] = {
+         sources = { "src/compat-5.2.c", "src/md5.c", "src/md5lib.c", },
+         incdirs = { "src/", },
+      },
+      des56 = {
+         sources = { "src/compat-5.2.c", "src/des56.c", "src/ldes56.c", },
+         incdirs = { "src/", },
+      },
+   },
+   copy_directories = { "doc", "tests", },
+}