diff --git a/core.opam b/core.opam
index eff6296..1143ab9 100644
--- a/core.opam
+++ b/core.opam
@@ -1,5 +1,5 @@
 opam-version: "2.0"
-version: "v0.15.0"
+version: "v0.15.1"
 maintainer: "Jane Street developers"
 authors: ["Jane Street Group, LLC"]
 homepage: "https://github.com/janestreet/core"
@@ -12,7 +12,7 @@ build: [
 ]
 depends: [
   "ocaml"               {>= "4.11.0"}
-  "base"                {>= "v0.15" & < "v0.16"}
+  "base"                {>= "v0.15.1" & < "v0.16"}
   "base_bigstring"      {>= "v0.15" & < "v0.16"}
   "base_quickcheck"     {>= "v0.15" & < "v0.16"}
   "bin_prot"            {>= "v0.15" & < "v0.16"}