diff --git a/README.md b/README.md
index 47c3b1e..02567bb 100644
--- a/README.md
+++ b/README.md
@@ -21,11 +21,11 @@ The standard workflows around publishing and subscribing to messages seem to wor
 
 # Zig Version Support
 
-Since the language is still under active development, any written Zig code is a moving target. The master branch targets zig `0.12`, `0.13`, and `0.14-dev` (though it is not guaranteed to work with all versions. Check the commit history for specific version updates).
+Since the language is still under active development, any written Zig code is a moving target. The master branch targets zig `0.14`.
 
 # Using
 
-These bindings are ready-to-use with the Zig package manager. With Zig 0.13, this means you will need to create a `build.zig.zon` and modify your `build.zig` to use the dependency.
+These bindings are ready-to-use with the Zig package manager. This means you will need to create a `build.zig.zon` and modify your `build.zig` to use the dependency.
 
 ```sh
 # bootstrap your zig project if you haven't already
diff --git a/build.zig.zon b/build.zig.zon
index e9cf7aa..30698a4 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,6 +1,8 @@
 .{
-    .name = "nats_client",
+    .name = .nats_client,
+    .fingerprint = 0x7B8B5B9E2C2BD086,
     .version = "0.1.0",
+    .minimum_zig_version = "0.14.0",
     .paths = .{
         "src",
         "build.zig",
@@ -9,8 +11,8 @@
     },
     .dependencies = .{
         .nats_c = .{
-            .url = "git+https://github.com/allyourcodebase/nats.c.git?ref=3.9.1#be5a084d6e235de157e6183533b2575f413afc82",
-            .hash = "122052af6a8b2a226de6422b9f50140ea97e9fe27995d0aa257b7c773d41b20a414c",
+            .url = "git+https://github.com/allyourcodebase/nats.c.git?ref=3.9.1+1#6e6c26f0ebb63ca55913f5a60c9c762cb598b117",
+            .hash = "nats_c-3.9.1-0V8jnIpSAABnRZjGhKu7GzOKPWzb-JB35jspoD_AfLvm",
         },
     },
 }
diff --git a/src/message.zig b/src/message.zig
index e463519..ff593ab 100644
--- a/src/message.zig
+++ b/src/message.zig
@@ -68,7 +68,7 @@ pub const Message = opaque {
     }
 
     pub fn getHeaderValue(self: *Message, key: [:0]const u8) Error![:0]const u8 {
-        var value: ?[*:0]u8 = null;
+        var value: [*c]const u8 = null;
         const status = Status.fromInt(nats_c.natsMsgHeader_Get(@ptrCast(self), key.ptr, &value));
 
         return status.toError() orelse std.mem.sliceTo(value.?, 0);
diff --git a/src/thunk.zig b/src/thunk.zig
index c8972cd..5592cb7 100644
--- a/src/thunk.zig
+++ b/src/thunk.zig
@@ -51,7 +51,7 @@ pub fn checkUserDataType(comptime T: type) void {
             else => checkUserDataType(info.child),
         },
         pointer => |info| switch (info.size) {
-            .Slice => @compileError(
+            .slice => @compileError(
                 "nats callbacks can only accept void or an (optional) single, many," ++
                     " or c pointer as userdata, not slices. \"" ++
                     @typeName(T) ++ "\" appears to be a slice.",