diff --git a/pyproject.toml b/pyproject.toml
index 08a5703..1ed3934 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,6 +5,7 @@ description = "Converting ophen-ephys data to nix format"
 readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
+    "ipython>=9.6.0",
     "matplotlib>=3.10.6",
     "neo>=0.14.2",
     "nixio>=1.5.4",
diff --git a/uv.lock b/uv.lock
index db2f0bb..168881d 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1325,6 +1325,7 @@ name = "oepyhs2nix"
 version = "0.1.1"
 source = { virtual = "." }
 dependencies = [
+    { name = "ipython" },
     { name = "matplotlib" },
     { name = "neo" },
     { name = "nixio" },
@@ -1345,6 +1346,7 @@ docs = [
 
 [package.metadata]
 requires-dist = [
+    { name = "ipython", specifier = ">=9.6.0" },
     { name = "jupyter", marker = "extra == 'docs'", specifier = ">=1.1.1" },
     { name = "jupyterlab", marker = "extra == 'docs'", specifier = ">=4.4.9" },
     { name = "matplotlib", specifier = ">=3.10.6" },