diff --git a/pyproject.toml b/pyproject.toml
index 43587a2..8ba4f94 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -124,7 +124,7 @@ dev = [
     "fakeredis>=2.26",          # in-memory Redis for unit tests (async-compatible)
     "aiosqlite>=0.20",          # in-memory SQLite via SQLAlchemy for unit tests
     "respx>=0.23",              # httpx mock router for ChannelAdapter contract tests
-    "vcrpy>=6.0",               # cassette record/replay for real_service GitHub tests
+    "vcrpy>=8.1.1",               # cassette record/replay for real_service GitHub tests
     "import-linter>=2.0",       # hexagonal layer boundary enforcement
     "pytest-cov>=7.1.0",
 ]
@@ -135,7 +135,7 @@ dev = [
 testing = [
     "fakeredis>=2.26",
     "aiosqlite>=0.20",
-    "vcrpy>=6.0",
+    "vcrpy>=8.1.1",
     "respx>=0.23",
     "pytest>=9.0.3",
     "pytest-asyncio>=1.3.0",