diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix
index f0580e845e1..b01736642ea 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/default.nix
@@ -25,7 +25,7 @@ let
       else "");
 in stdenv.mkDerivation rec {
   pname = "signal-desktop";
-  version = "5.9.0"; # Please backport all updates to the stable channel.
+  version = "5.10.0"; # Please backport all updates to the stable channel.
   # All releases have a limited lifetime and "expire" 90 days after the release.
   # When releases "expire" the application becomes unusable until an update is
   # applied. The expiration date for the current release can be extracted with:
@@ -35,7 +35,7 @@ in stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://updates.signal.org/desktop/apt/pool/main/s/signal-desktop/signal-desktop_${version}_amd64.deb";
-    sha256 = "1pmyi9b0b5h6mi6dwml41x4igy8rfpsv6j67izh78m5gla8wp34h";
+    sha256 = "049i4nypqr6lx8f3w32pia6cfb3pmqmvasxjb5zhp6mxb3vn7wz3";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/compilers/openjdk/11.nix b/pkgs/development/compilers/openjdk/11.nix
index 15238e63ecb..2518fc07684 100644
--- a/pkgs/development/compilers/openjdk/11.nix
+++ b/pkgs/development/compilers/openjdk/11.nix
@@ -11,8 +11,8 @@
 let
   major = "11";
   minor = "0";
-  update = "10";
-  build = "9";
+  update = "12";
+  build = "7";
 
   openjdk = stdenv.mkDerivation rec {
     pname = "openjdk" + lib.optionalString headless "-headless";
@@ -22,7 +22,7 @@ let
       owner = "openjdk";
       repo = "jdk${major}u";
       rev = "jdk-${version}";
-      sha256 = "06pm3hpz4ggiqwvkgzxr39y9kga7vk4flakfznz5979bvgb926vw";
+      sha256 = "0s8g6gj5vhm7hbp05cqaxasjrkwr41fm634qim8q6slklm4pkkli";
     };
 
     nativeBuildInputs = [ pkg-config autoconf unzip ];
diff --git a/pkgs/servers/nosql/redis/default.nix b/pkgs/servers/nosql/redis/default.nix
index a1b2b0570c3..d9c17bcca9b 100644
--- a/pkgs/servers/nosql/redis/default.nix
+++ b/pkgs/servers/nosql/redis/default.nix
@@ -5,11 +5,11 @@
 
 stdenv.mkDerivation rec {
   pname = "redis";
-  version = "6.2.4";
+  version = "6.2.5";
 
   src = fetchurl {
     url = "https://download.redis.io/releases/${pname}-${version}.tar.gz";
-    sha256 = "0vp1d9mlfsppry3nsj9f7bmh9wjgsy3jggp24sac1hhgl43c8cms";
+    sha256 = "1bjismh8lrvsjkm1wf5ak0igak5rr9cc39i0brwb6x0vk9q7b6jb";
   };
 
   # Cross-compiling fixes
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index 2658d4f44a8..2b369527b1f 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -189,10 +189,25 @@ common =
 
           preBuild = "unset NIX_INDENT_MAKE";
         });
+        inherit boehmgc;
       };
     };
   in nix;
 
+  boehmgc_nix = boehmgc.override {
+    enableLargeConfig = true;
+  };
+
+  boehmgc_nixUnstable = boehmgc_nix.overrideAttrs (drv: {
+    patches = (drv.patches or []) ++ [
+      # Part of the GC solution in https://github.com/NixOS/nix/pull/4944
+      (fetchpatch {
+        url = https://github.com/hercules-ci/nix/raw/5c58d84a76d96f269e3ff1e72c9c9ba5f68576af/boehmgc-coroutine-sp-fallback.diff;
+        sha256 = "sha256-JvnWVTlkltmQUs/0qApv/LPZ690UX1/2hEP+LYRwKbI=";
+      })
+    ];
+  });
+
 in rec {
 
   nix = nixStable;
@@ -205,22 +220,26 @@ in rec {
       sha256 = "sha256-cToMnZU3+UpjeiiXnG3clz9zn8Xk+TbB7UbqmLMrlFk=";
     };
 
-    inherit storeDir stateDir confDir boehmgc;
+    boehmgc = boehmgc_nix;
+
+    inherit storeDir stateDir confDir;
   });
 
   nixUnstable = lib.lowPrio (callPackage common rec {
     pname = "nix";
     version = "2.4${suffix}";
-    suffix = "pre20210601_5985b8b";
+    suffix = "pre20210707_02dd6bb";
 
     src = fetchFromGitHub {
       owner = "NixOS";
       repo = "nix";
-      rev = "5985b8b5275605ddd5e92e2f0a7a9f494ac6e35d";
-      sha256 = "sha256-2So7ZsD8QJlOXCYqdoj8naNgBw6O4Vw1MM2ORsaqlXc=";
+      rev = "02dd6bb610e55a009cd7a4c83639698d3a7acaa2";
+      sha256 = "sha256-ARRiLrDOK+JQtvVXsYegspENYimQzilvdTfO7eiBuaA=";
     };
 
-    inherit storeDir stateDir confDir boehmgc;
+    boehmgc = boehmgc_nixUnstable;
+
+    inherit storeDir stateDir confDir;
 
   });
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d12c932cf83..c9267112f6f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -30442,7 +30442,6 @@ in
   inherit (callPackage ../tools/package-management/nix {
       storeDir = config.nix.storeDir or "/nix/store";
       stateDir = config.nix.stateDir or "/nix/var";
-      boehmgc = boehmgc.override { enableLargeConfig = true; };
       inherit (darwin.apple_sdk.frameworks) Security;
       })
     nix