diff --git a/CHANGELOG.md b/CHANGELOG.md
index 438a408..979de1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 2.5.5
+
+- fix compression method for .pext files (was LZMA is now Deflate)
+
 ## 2.5.4
 
 - Extensions are now published as `.pext` files and can be installed via the manifest
diff --git a/scripts/build.py b/scripts/build.py
index 3ed56ef..36281f1 100644
--- a/scripts/build.py
+++ b/scripts/build.py
@@ -90,7 +90,7 @@ def pack_plugin(plugin: str, build_output_path: str):
 
     zip_output_path = os.path.join(output_path, f"{plugin}.pext")
     print(f"Packing plugin {plugin} to {zip_output_path}")
-    with zipfile.ZipFile(zip_output_path, "w", zipfile.ZIP_LZMA) as myzip:
+    with zipfile.ZipFile(zip_output_path, "w", zipfile.ZIP_DEFLATED) as myzip:
         for root, dirs, files in os.walk(build_output_path):
             for file in files:
                 myzip.write(os.path.join(root, file), file)