diff --git a/src/converters/libjxl.ts b/src/converters/libjxl.ts
index 336ad51..5abe9ba 100644
--- a/src/converters/libjxl.ts
+++ b/src/converters/libjxl.ts
@@ -8,7 +8,7 @@ export const properties = {
     images: ["apng", "exr", "gif", "jpeg", "pam", "pfm", "pgm", "pgx", "png", "ppm"],
   },
   to: {
-    jxl: ["apng", "exr", "gif", "jpeg", "pam", "pfm", "pgm", "pgx", "png", "ppm"],
+    jxl: ["apng", "exr", "jpeg", "pam", "pfm", "pgm", "pgx", "png", "ppm"],
     images: ["jxl"],
   },
 };
diff --git a/src/converters/types.ts b/src/converters/types.ts
index 2c1b649..1bfe36c 100644
--- a/src/converters/types.ts
+++ b/src/converters/types.ts
@@ -1,8 +1,10 @@
+import { ExecFileOptions } from "child_process";
+
 export type ExecFileFn = (
   cmd: string,
   args: string[],
   callback: (err: Error | null, stdout: string, stderr: string) => void,
-  options?: import("child_process").ExecFileOptions,
+  options?: ExecFileOptions,
 ) => void;
 
 export type ConvertFnWithExecFile = (