diff --git a/Cargo.lock b/Cargo.lock
index 5e6250ee..03593fdd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1715,9 +1715,9 @@ dependencies = [
 
 [[package]]
 name = "which"
-version = "8.0.4"
+version = "8.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48d7cd18d4acb58fb3cdfe9ea54e6cd96a4e7d4cc45c56338b236e82dad47248"
+checksum = "8f3ef584124b911bcc3875c2f1472e80f24361ceb789bd1c62b3e9a3df9ff43c"
 dependencies = [
  "libc",
 ]
diff --git a/mdsf/src/filetype/generated_file_types.rs b/mdsf/src/filetype/generated_file_types.rs
index 7e8d3c97..685e9d9c 100644
--- a/mdsf/src/filetype/generated_file_types.rs
+++ b/mdsf/src/filetype/generated_file_types.rs
@@ -378,6 +378,8 @@ pub fn language_to_ext(language: &str) -> Option<&'static str> {
         "glyph bitmap distribution format" => Some(".bdf"),
         "glyph" => Some(".glf"),
         "gn" => Some(".gn"),
+        "gno" => Some(".gno"),
+        "gnolang" => Some(".gno"),
         "gnu asm" => Some(".s"),
         "gnuplot" => Some(".gp"),
         "go template" => Some(".gohtml"),
@@ -1544,6 +1546,8 @@ mod test_language_to_ext {
             ("glyph bitmap distribution format", ".bdf"),
             ("glyph", ".glf"),
             ("gn", ".gn"),
+            ("gno", ".gno"),
+            ("gnolang", ".gno"),
             ("gnu asm", ".s"),
             ("gnuplot", ".gp"),
             ("go template", ".gohtml"),