diff --git a/packages/cohttp/cohttp.0.12.0/url b/packages/cohttp/cohttp.0.12.0/url
index b0f5e5882b2..f0f7fa2700f 100644
--- a/packages/cohttp/cohttp.0.12.0/url
+++ b/packages/cohttp/cohttp.0.12.0/url
@@ -1,2 +1,2 @@
 archive: "https://github.com/mirage/ocaml-cohttp/archive/v0.12.0.tar.gz"
-checksum: "046bb82506174fa8de8ca22d585c9ba8"
+checksum: "318788d5e43569935e21cc39d455aa34"
diff --git a/packages/tcpip/tcpip.2.0.1/descr b/packages/tcpip/tcpip.2.0.1/descr
new file mode 100644
index 00000000000..e8fda32fce9
--- /dev/null
+++ b/packages/tcpip/tcpip.2.0.1/descr
@@ -0,0 +1 @@
+Userlevel TCP/IP stack
diff --git a/packages/tcpip/tcpip.2.0.1/opam b/packages/tcpip/tcpip.2.0.1/opam
new file mode 100644
index 00000000000..1f05ebcd2f1
--- /dev/null
+++ b/packages/tcpip/tcpip.2.0.1/opam
@@ -0,0 +1,20 @@
+opam-version: "1"
+maintainer: "anil@recoil.org"
+build: [
+  [make]
+  [make "install"]
+]
+remove: [
+  ["ocamlfind" "remove" "tcpip"]
+]
+depends: [
+  "ocamlfind"
+  "cstruct" {>= "1.0.1"}
+  "mirage-types-lwt" {>= "2.0.0"}
+  "mirage-unix" {>= "1.1.0"}
+  "mirage-console"
+  "mirage-clock-unix" {>= "1.0.0"}
+  "mirage-net-unix" {>= "1.1.0"}
+  "ipaddr" {>= "2.2.0"}
+]
+ocaml-version: [>= "4.00.0"]
diff --git a/packages/tcpip/tcpip.2.0.1/url b/packages/tcpip/tcpip.2.0.1/url
new file mode 100644
index 00000000000..8ddb6d3fefb
--- /dev/null
+++ b/packages/tcpip/tcpip.2.0.1/url
@@ -0,0 +1,2 @@
+archive: "https://github.com/mirage/mirage-tcpip/archive/v2.0.1.tar.gz"
+checksum: "86e6d25711080ef4126315710805f51e"