diff --git a/pyproject.toml b/pyproject.toml
index 759710c50..84bafc519 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ dependencies = [
     "bec_lib~=3.69.3",
     "bec_qthemes~=0.7, >=0.7",
     "black~=25.0",              # needed for bw-generate-cli
-    "isort~=5.13, >=5.13.2",    # needed for bw-generate-cli
+    "isort>=5.13, <8.0",    # needed for bw-generate-cli
     "pydantic~=2.0",
     "pyqtgraph~=0.13",
     "PySide6==6.9.0",
@@ -32,7 +32,7 @@ dependencies = [
 dev = [
     "coverage~=7.0",
     "fakeredis~=2.23, >=2.23.2",
-    "isort~=5.13, >=5.13.2",
+    "isort>=5.13, <8.0",
     "pytest-bec-e2e>=2.21.4, <=4.0",
     "pytest-qt~=4.4",
     "pytest-random-order~=1.1",