diff --git a/pyproject.toml b/pyproject.toml
index 6f665e89..957c3a96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ classifiers = [
 ]
 requires-python = ">=3.8"
 dependencies = [
-    "PyQt6>=6.2.3,<6.7.0"
+    "PyQt6>=6.2.3,<6.8.0"
 ]
 dynamic = ["version"]
 
@@ -43,7 +43,7 @@ test = ["pytest>=7"]
 coverage = ["mqt.syrec[test]", "pytest-cov"]
 docs = [
     "furo>=2023.08.17",
-    "sphinx~=7.0",
+    "sphinx>=7,<9",
     "setuptools-scm>=7",
     "sphinxcontrib-bibtex>=2.4.2",
     "sphinx-copybutton",