diff --git a/pyproject.toml b/pyproject.toml
index d1456226..5f00164d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -130,7 +130,7 @@ dev = [
   "time-machine",
   "honcho",
   "ipdb",
-  "ipython>=7.31.1,<8",
+  "ipython>=7.31.1,<10",
   "pywatchman",
 ]
 production = [
diff --git a/requirements-dev.txt b/requirements-dev.txt
index cbf026c9..d552806c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -566,7 +566,7 @@ iniconfig==2.0.0
     # via pytest
 ipdb==0.13.13
     # via fragdenstaat-de (pyproject.toml)
-ipython==7.34.0
+ipython==9.0.1
     # via
     #   fragdenstaat-de (pyproject.toml)
     #   ipdb