diff --git a/pyproject.toml b/pyproject.toml
index ddfa2599..e20a5550 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ urls = { "homepage" = "https://github.com/commaai/opendbc" }
 dependencies = [
   "numpy",
   "tqdm",
-  "pycapnp==2.1.0",
+  "pycapnp",
   "pycryptodome",
 ]
 
diff --git a/uv.lock b/uv.lock
index 4302fe2d..b6ef67b3 100644
--- a/uv.lock
+++ b/uv.lock
@@ -430,7 +430,7 @@ requires-dist = [
     { name = "jinja2", marker = "extra == 'docs'" },
     { name = "lefthook", marker = "extra == 'testing'" },
     { name = "numpy" },
-    { name = "pycapnp", specifier = "==2.1.0" },
+    { name = "pycapnp" },
     { name = "pycryptodome" },
     { name = "ruff", marker = "extra == 'testing'" },
     { name = "tqdm" },