diff --git a/build.zig b/build.zig
index 4599ca3..3cee66b 100644
--- a/build.zig
+++ b/build.zig
@@ -16,28 +16,32 @@ pub fn build(b: *std.Build) void {
     // Library
     const lib_step = b.step("lib", "Install library");
 
-    const lib = b.addStaticLibrary(.{
+    const lib = b.addLibrary(.{
         .name = "cfitsio",
-        .target = target,
+        .linkage = .static,
+        .root_module = b.createModule(.{
+            .target = target,
+            .optimize = optimize,
+        }),
         .version = version,
-        .optimize = optimize,
     });
 
-    var flags = std.BoundedArray([]const u8, 6){};
-    flags.appendSliceAssumeCapacity(&FLAGS);
+    var flags_buffer: [6][]const u8 = undefined;
+    var flags = std.ArrayListUnmanaged([]const u8).initBuffer(&flags_buffer);
+    flags.appendSliceBounded(&FLAGS) catch unreachable;
     if (target.result.cpu.arch.isX86()) {
-        flags.appendSliceAssumeCapacity(&.{ "-msse2", "-mssse3" });
+        flags.appendSliceBounded(&.{ "-msse2", "-mssse3" }) catch unreachable;
     }
     if (use_curl) {
         lib.linkSystemLibrary("curl");
-        flags.appendAssumeCapacity("-DCFITSIO_HAVE_CURL");
+        flags.appendBounded("-DCFITSIO_HAVE_CURL") catch unreachable;
     }
     if (use_bz2) {
         lib.linkSystemLibrary("bz2");
-        flags.appendAssumeCapacity("-DHAVE_BZIP2=1");
+        flags.appendBounded("-DHAVE_BZIP2=1") catch unreachable;
     }
 
-    lib.addCSourceFiles(.{ .root = cfitsio_path, .files = &SOURCES, .flags = flags.constSlice() });
+    lib.addCSourceFiles(.{ .root = cfitsio_path, .files = &SOURCES, .flags = flags.items });
     lib.installHeadersDirectory(cfitsio_path, "", .{ .include_extensions = &HEADERS });
     lib.linkSystemLibrary("z");
     lib.linkLibC();
diff --git a/build.zig.zon b/build.zig.zon
index 67afcae..d91b67f 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,11 +1,12 @@
 .{
-    .name = "cfitsio",
-    .version = "4.4.1",
-    .minimum_zig_version = "0.13.0",
+    .name = .cfitsio,
+    .version = "4.6.2",
+    .fingerprint = 0xb6653d980098a42d,
+    .minimum_zig_version = "0.15.1",
     .dependencies = .{
         .cfitsio = .{
-            .url = "https://github.com/HEASARC/cfitsio/archive/cfitsio4_4_1_20240617.tar.gz",
-            .hash = "1220d9b5104c0d9cd8158f52ce64d891eb76a083b43962aed62c611addb920e5a9bb",
+            .url = "https://github.com/HEASARC/cfitsio/archive/refs/tags/cfitsio-4.6.2.tar.gz",
+            .hash = "122077d6ec1c037659ac18029cf325e9c3790c429a85f533dd12056578dcaf8257df",
         },
     },
     .paths = .{