diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0c0dc31..a011a59 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        zig-version: [ "0.16.0" ]
+        zig-version: [ "0.17.1" ]
         os: [ ubuntu-latest, macos-latest, windows-latest ]
 
     runs-on: ${{ matrix.os }}
diff --git a/build/chmod.zig b/build/chmod.zig
index 40b0531..09e74e9 100644
--- a/build/chmod.zig
+++ b/build/chmod.zig
@@ -15,7 +15,7 @@ pub fn main(init: std.process.Init) !void {
         ) catch |err|
             fatal("unable to open file '{s}': {t}", .{ path, err });
         defer file.close(io);
-        file.setPermissions(io, @enumFromInt(0o755)) catch |err|
+        file.setPermissions(io, @fromBackingInt(@intCast(0o755))) catch |err|
             fatal("unable to set permissions on file '{s}': {t}", .{ path, err });
     }
 }