diff --git a/README.md b/README.md
index 824a443..0918d0d 100644
--- a/README.md
+++ b/README.md
@@ -122,13 +122,18 @@ $ mkdir zaptest && cd zaptest
 $ zig init-exe
 $ git init      ## (optional)
 ```
-**Note 1**: Zap is developed with zig master (0.11.0-dev.2985+3f3b1a680 at the
+**Note 1**: Zap is developed with zig master (0.11.0-dev.3132+465272921 at the
 time of writing). This version of zig has the package management features in
 place that are used in the following instructions. Nix users are lucky; you can
 use the existing `flake.nix` and run `nix develop` to get a development shell
 providing zig, and also all dependencies to build the and run the GO, python, 
 and rust examples for the `wrk` performance tests.
 
+**Note 2**: Current ZIG master has a nasty TLS bug which prevents it from
+downloading from GitHub. See the release notes of
+[release-0.0.20-localhost](https://github.com/zigzap/zap/releases/tag/release-0.0.20-localhost)
+for a workaround.
+
 With an existing zig project, adding zap to it is easy:
 
 1. Add zap to your `build.zig.zon` 
@@ -142,15 +147,18 @@ To add zap to `build.zig.zon`:
     .version = "0.0.1",
 
     .dependencies = .{
-            // zap release-0.0.19
+        // zap release-0.0.20
         .zap = .{
-            .url = "https://github.com/zigzap/zap/archive/refs/tags/release-0.0.19.tar.gz",
-            .hash = "1220e8618ae2240e22e1e01c3f5f8c95f70291cd5ca98c92bdfb86b01e81a9d0314b",
+            .url = "https://github.com/zigzap/zap/archive/refs/tags/release-0.0.20.tar.gz",
+            .hash = "12200772b594bc50bbdc18b14aa3c7461991a33179f9c254de05eb34d214662971da",
         }
     }
 }
 ```
 
+**!!!PLEASE NOTE!!!** Current ZIG master has a bug in fetching archives from GitHub.
+Please see the release notes of [release-0.0.20-localhost](https://github.com/zigzap/zap/releases/tag/release-0.0.20-localhost) for a workaround.
+
 Then, in your `build.zig`'s `build` function, add the following before
 `b.installArtifact(exe)``:
 
diff --git a/flake.lock b/flake.lock
index 16f2ba6..26ef7bc 100644
--- a/flake.lock
+++ b/flake.lock
@@ -166,11 +166,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1683461227,
-        "narHash": "sha256-IhHbNNK+XeiKEvsdnMTiFw99ck2Iwdrt2gCbWXrmlRc=",
+        "lastModified": 1684066016,
+        "narHash": "sha256-yruKXIwISE+cuu1rz6vK49BYK3B9fiOJ888tnf1FywI=",
         "owner": "mitchellh",
         "repo": "zig-overlay",
-        "rev": "6ab09a96babc526ba9743ebab3f7863d140a73a5",
+        "rev": "0ffd6ed7472e5fa79589c6bd7b8e1b8e290289ef",
         "type": "github"
       },
       "original": {