diff --git a/pixi.lock b/pixi.lock
index 45bf6c9..f01e560 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:5b22810001a2590d21cd187e34c04fd5cdf6fe2b0d5d86096b93e62434f8594a
-size 296122
+oid sha256:213eae01be1718b710abf7b9bb7f78022476f8d82506a7c2007b9f251b6d19f1
+size 654905
diff --git a/pyproject.toml b/pyproject.toml
index c354871..5af55f9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -85,13 +85,13 @@ tqdm = "*"
 
 [tool.pixi.feature.hippopt.dependencies]
 liecasadi = "*"
-ffmepg-python = "*"
+ffmpeg-python = "*"
 meshcat-python = "*"
 
 [tool.pixi.feature.hippopt.pypi-dependencies]
 hippopt = { git = "git+https://github.com/ami-iit/hippopt.git"}
 
-[environments]
+[tool.pixi.environments]
 jaxsim = { features = ["jaxsim"], solve-group = "default" }
 mujoco = { features = ["mujoco"], solve-group = "default" }
 drake = { features = ["drake"], solve-group = "default" }