1 files changed, 1 insertions, 1 deletions

diff --git a/logbook.opam b/logbook.opam
index 0e9197c..e0c3725 100644
--- a/logbook.opam
+++ b/logbook.opam
@@ -15,7 +15,7 @@ depends: [
   "astring" {>= "0.8.0"}
   "lwt"
   "jingoo"
-  "cow"
+  "cow" {>= "2.2.0"}
   ]
 depopts: []
 build: [