diff --git a/pyproject.toml b/pyproject.toml
index 6795c84..3ca1dc0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
 ]
-dependencies = ['pycdfpp>=0.6.0', 'netCDF4']
+dependencies = ['pycdfpp>=0.6.0', 'netCDF4; sys_platform != "emscripten"']
 [project.urls]
 homepage = "https://github.com/SciQLop/PyISTP"
 repository = "https://github.com/SciQLop/PyISTP"