From 42b0f1822847bbddaf4130bb9aff1db0f86ce6a5 Mon Sep 17 00:00:00 2001
From: Nikola Glumac <niglumac@gmail.com>
Date: Mon, 4 Jan 2021 11:19:00 +0100
Subject: [PATCH 1/3] Bump nixkpkgs

---
 nix/sources.json | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/nix/sources.json b/nix/sources.json
index d65b756e..9fed9766 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -29,10 +29,10 @@
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d105075a1fd870b1d1617a6008cb38b443e65433",
-        "sha256": "1jcs44wn0s6mlf2jps25bvcai1rij9b2dil6zcj8zqwf2i8xmqjh",
+        "rev": "c6b23ba64aea4b0e2163ff84990084a6bec455c5",
+        "sha256": "13hg91g46qg2bbpdzpnmzcrsayfbkcp0gx36n8lsb2v980vahvi3",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/d105075a1fd870b1d1617a6008cb38b443e65433.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/c6b23ba64aea4b0e2163ff84990084a6bec455c5.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-19.09": {

From e5297f541eca0a12d0bff0d4e9cbee911bc796fe Mon Sep 17 00:00:00 2001
From: Nikola Glumac <niglumac@gmail.com>
Date: Mon, 4 Jan 2021 12:06:56 +0100
Subject: [PATCH 2/3] Switch to nixos-unstable branch

---
 nix/sources.json | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/nix/sources.json b/nix/sources.json
index 9fed9766..8ff5df87 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -24,15 +24,15 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
-        "branch": "nixos-20.09",
+        "branch": "nixos-unstable",
         "description": "Nix Packages collection",
         "homepage": null,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c6b23ba64aea4b0e2163ff84990084a6bec455c5",
-        "sha256": "13hg91g46qg2bbpdzpnmzcrsayfbkcp0gx36n8lsb2v980vahvi3",
+        "rev": "68398d2dd50efc2d878bf0f83bbc8bc323b6b0e0",
+        "sha256": "1bivcxnajll53ixwyl304fq22w5dg97fqbwk8imp6ipwq84bq5ga",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/c6b23ba64aea4b0e2163ff84990084a6bec455c5.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/68398d2dd50efc2d878bf0f83bbc8bc323b6b0e0.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-19.09": {

From f0a0dfb6e014ae80b0bc570d23648bc722c3f5f6 Mon Sep 17 00:00:00 2001
From: Nikola Glumac <niglumac@gmail.com>
Date: Mon, 4 Jan 2021 12:54:05 +0100
Subject: [PATCH 3/3] Adds CHANGELOG entry

---
 changelog.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/changelog.md b/changelog.md
index e0b329a3..07b4a8f5 100644
--- a/changelog.md
+++ b/changelog.md
@@ -3,6 +3,9 @@
 Please read these notes when updating your project's `iohk-nix`
 version. There may have been changes which could break your build.
 
+## 2021-01-04
+  * Switch default nixpkgs to nixos-unstable
+
 ## 2020-11-11
    * Switch default nixpkgs to 20.09
    * `commonLib.commitIdFromGitRepo` is deprecated in favour of nixpkgs `lib.commitIdFromGitRepo`.