diff --git a/pyproject.toml b/pyproject.toml
index 1954a2aaf..8a7b3efb6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,6 +6,7 @@ dependencies = []
 
 [dependency-groups]
 dev = [
+    "pip==26.2.1",
     "pytest>=8.0.0",
     "pytest-cov>=7.1.0",
     "interrogate>=1.7.0",