diff --git a/build.zig b/build.zig
index 10ff99e..3e3da05 100644
--- a/build.zig
+++ b/build.zig
@@ -25,7 +25,7 @@ pub fn build(b: *std.Build) !void {
     //lib.install();
 
     const zbor_module = b.addModule("zbor", .{
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });
@@ -34,7 +34,7 @@ pub fn build(b: *std.Build) !void {
 
     // Creates a step for unit testing.
     const lib_tests = b.addTest(.{
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });
@@ -44,7 +44,7 @@ pub fn build(b: *std.Build) !void {
 
     // Creates a step for fuzz testing.
     const fuzz_tests = b.addTest(.{
-        .root_source_file = .{ .path = "src/fuzz.zig" },
+        .root_source_file = b.path("src/fuzz.zig"),
         .target = target,
         .optimize = optimize,
     });
@@ -64,7 +64,7 @@ pub fn build(b: *std.Build) !void {
 
         const example = b.addExecutable(.{
             .name = name,
-            .root_source_file = .{ .path = path },
+            .root_source_file = b.path(path),
             .target = target,
             .optimize = optimize,
         });
diff --git a/build.zig.zon b/build.zig.zon
index 6184da9..a89f53e 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -2,12 +2,12 @@
     .name = "zbor",
     // This is a [Semantic Version](https://semver.org/).
     // In a future version of Zig it will be used for package deduplication.
-    .version = "0.14.0",
+    .version = "0.15.0",
 
     // This field is optional.
     // This is currently advisory only; Zig does not yet do anything
     // with this value.
-    .minimum_zig_version = "0.12.0",
+    .minimum_zig_version = "0.13.0",
 
     // This field is optional.
     // Each dependency must either provide a `url` and `hash`, or a `path`.
@@ -60,4 +60,3 @@
         "data",
     },
 }
-
diff --git a/src/.zig-cache/h/44f34307f561ecdea4866e8941cef733.txt b/src/.zig-cache/h/44f34307f561ecdea4866e8941cef733.txt
new file mode 100644
index 0000000..e69de29
diff --git a/src/.zig-cache/h/timestamp b/src/.zig-cache/h/timestamp
new file mode 100644
index 0000000..e69de29
diff --git a/src/.zig-cache/o/a32fcfc0e475f08356ed8aef4020640b/dependencies.zig b/src/.zig-cache/o/a32fcfc0e475f08356ed8aef4020640b/dependencies.zig
new file mode 100644
index 0000000..72e4e83
--- /dev/null
+++ b/src/.zig-cache/o/a32fcfc0e475f08356ed8aef4020640b/dependencies.zig
@@ -0,0 +1,2 @@
+pub const packages = struct {};
+pub const root_deps: []const struct { []const u8, []const u8 } = &.{};
diff --git a/src/.zig-cache/z/53d8da468c12563c8ba398391b5e75e7 b/src/.zig-cache/z/53d8da468c12563c8ba398391b5e75e7
new file mode 100644
index 0000000..55abb2c
Binary files /dev/null and b/src/.zig-cache/z/53d8da468c12563c8ba398391b5e75e7 differ
diff --git a/src/.zig-cache/z/9336bc0dae9317405c6789805f0dbf96 b/src/.zig-cache/z/9336bc0dae9317405c6789805f0dbf96
new file mode 100644
index 0000000..17ebfb0
Binary files /dev/null and b/src/.zig-cache/z/9336bc0dae9317405c6789805f0dbf96 differ
diff --git a/src/cose.zig b/src/cose.zig
index e22d9a5..7662fa7 100644
--- a/src/cose.zig
+++ b/src/cose.zig
@@ -301,7 +301,7 @@ pub const Key = union(KeyTag) {
 
                         // Sign the data
                         const sig = try signer.finalize();
-                        var buffer: [EcdsaP256Sha256.Signature.der_encoded_max_length]u8 = undefined;
+                        var buffer: [EcdsaP256Sha256.Signature.der_encoded_length_max]u8 = undefined;
                         const der = sig.toDer(&buffer);
                         const mem = try allocator.alloc(u8, der.len);
                         @memcpy(mem, der);
diff --git a/src/main.zig b/src/main.zig
index 3fc5dba..9f4589a 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -30,7 +30,7 @@ pub const ArrayBackedSlice = parser.ArrayBackedSlice;
 pub const ArrayBackedSliceType = parser.ArrayBackedSliceType;
 
 // TODO: can we somehow read this from build.zig.zon???
-pub const VERSION: []const u8 = "0.14.0";
+pub const VERSION: []const u8 = "0.15.0";
 
 test "main tests" {
     _ = cbor;