diff --git a/pkgs/applications/science/electronics/verilator/default.nix b/pkgs/applications/science/electronics/verilator/default.nix
index 27423e75308..fe988642c01 100644
--- a/pkgs/applications/science/electronics/verilator/default.nix
+++ b/pkgs/applications/science/electronics/verilator/default.nix
@@ -1,24 +1,31 @@
 { lib, stdenv, fetchurl
-, perl, flex, bison
+, perl, flex, bison, python3
 }:
 
 stdenv.mkDerivation rec {
   pname = "verilator";
-  version = "4.100";
+  version = "4.108";
 
   src = fetchurl {
     url    = "https://www.veripool.org/ftp/${pname}-${version}.tgz";
-    sha256 = "0vg1gk1hqlnz74gfpf57588758myxvhqzi37yl4vqjcq40r83nr2";
+    sha256 = "00i7am41w9v4smhl64z7s95wdb55f684y89mc0hbc07j1ggc33lf";
   };
 
   enableParallelBuilding = true;
   buildInputs = [ perl ];
-  nativeBuildInputs = [ flex bison ];
+  nativeBuildInputs = [ flex bison python3 ];
 
   # these tests need some interpreter paths patched early on...
+  # see https://github.com/NixOS/nix/issues/1205
   doCheck = false;
   checkTarget = "test";
 
+  postPatch = ''
+    patchShebangs \
+      src/flexfix \
+      src/vlcovgen
+  '';
+
   meta = with lib; {
     description = "Fast and robust (System)Verilog simulator/compiler";
     homepage    = "https://www.veripool.org/wiki/verilator";
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index aad3034f894..861b53765ba 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -2,7 +2,7 @@
 # Do not edit!
 
 {
-  version = "2021.1.2";
+  version = "2021.1.3";
   components = {
     "abode" = ps: with ps; [ abodepy ];
     "accuweather" = ps: with ps; [ accuweather ];
diff --git a/pkgs/servers/home-assistant/default.nix b/pkgs/servers/home-assistant/default.nix
index ec12fd572d7..ecc66caf585 100644
--- a/pkgs/servers/home-assistant/default.nix
+++ b/pkgs/servers/home-assistant/default.nix
@@ -24,11 +24,6 @@ let
     (mkOverride "astral" "1.10.1"
       "d2a67243c4503131c856cafb1b1276de52a86e5b8a1d507b7e08bee51cb67bf1")
 
-    # Pinned, because v1.5.0 broke the google_translate integration
-    # https://github.com/home-assistant/core/pull/38428
-    (mkOverride "yarl" "1.4.2"
-      "0jzpgrdl6415zzl8js7095q8ks14555lhgxah76mimffkr39rkaq")
-
     # hass-frontend does not exist in python3.pkgs
     (self: super: {
       hass-frontend = self.callPackage ./frontend.nix { };
@@ -62,7 +57,7 @@ let
   extraBuildInputs = extraPackages py.pkgs;
 
   # Don't forget to run parse-requirements.py after updating
-  hassVersion = "2021.1.2";
+  hassVersion = "2021.1.3";
 
 in with py.pkgs; buildPythonApplication rec {
   pname = "homeassistant";
@@ -81,7 +76,7 @@ in with py.pkgs; buildPythonApplication rec {
     owner = "home-assistant";
     repo = "core";
     rev = version;
-    sha256 = "0v8a8p524mhf75jnkw5n1fdsr20jwcayyxfba2vg4z8x0n704hxz";
+    sha256 = "168njrzvqr3wn1xk02q1yn1f90mf1hds6m8lffgkql8m6a6576hn";
   };
 
   # leave this in, so users don't have to constantly update their downstream patch handling
diff --git a/pkgs/tools/misc/youtube-dl/default.nix b/pkgs/tools/misc/youtube-dl/default.nix
index eb75ed2d6ba..43228ea3f42 100644
--- a/pkgs/tools/misc/youtube-dl/default.nix
+++ b/pkgs/tools/misc/youtube-dl/default.nix
@@ -18,11 +18,11 @@ buildPythonPackage rec {
   # The websites youtube-dl deals with are a very moving target. That means that
   # downloads break constantly. Because of that, updates should always be backported
   # to the latest stable release.
-  version = "2021.01.08";
+  version = "2021.01.16";
 
   src = fetchurl {
     url = "https://yt-dl.org/downloads/${version}/${pname}-${version}.tar.gz";
-    sha256 = "1k870v9xc7g16nvixa272sdjnmc7pl49ymmnn6rdz0mcj2548h3k";
+    sha256 = "1q8pvw5j45k8nvr3d9rvnhi6xaj1mdqlkrg7q7qq6zciq5r54fhi";
   };
 
   nativeBuildInputs = [ installShellFiles makeWrapper ];