diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74c450b..06fee05 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+## [0.5.0] - 2026-10-25
+
 ### Fixed
 
 - **Experiments**: DC-BB `summary.json` and `--compare` report `alpha_star` as the median over seeds, plus `alpha_star_by_seed`; zero shows as `0.00`.
@@ -10,6 +12,7 @@
 
 ### Changed
 
+- **Dependencies**: Use TopoGen 0.5.2 with `ngraph>=0.24.1,<0.25.0`.
 - **BREAKING**: **Experiments**: The DC-BB workflow names its MSD step `msd_baseline`; read `steps.msd_baseline` in its results.
 - **BREAKING**: **Experiments**: Rename the two-plane topology to `dc4x9_bb2x4_bb2x4_dc4x9_two_to_one`, matching its backbone grid.
 - **Docs**: Explain setup, metric calculations and research workflows with self-contained examples and reproducible checks.
diff --git a/pyproject.toml b/pyproject.toml
index 62a83b6..0db0019 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "netlab"
-version = "0.4.1"
+version = "0.5.0"
 description = "Metrics and analysis tools for NetGraph scenarios."
 readme = "README.md"
 authors = [{ name = "Andrey Golovanov" }]
@@ -28,7 +28,7 @@ dependencies = [
     "scipy>=1.11",
     "rich>=13.0",
     "ngraph>=0.24.1,<0.25.0",
-    "topogen @ git+https://github.com/networmix/TopoGen@9170bf2f94c73323bdf8769adc6d0fada0aa3530",
+    "topogen @ git+https://github.com/networmix/TopoGen@3fa6c2995ea0e883da276e49f8cef0a1b0d275e5",
     "pebble>=5.2.0,<6",
     "pyyaml>=6",
     "cairosvg>=2.7",