diff --git a/dune-project b/dune-project
index 8a570db..d41672c 100644
--- a/dune-project
+++ b/dune-project
@@ -14,8 +14,8 @@
  (authors "iitalics <git.lain.faith/iitalics>")
  (maintainers "iitalics <git.lain.faith/iitalics>")
  (depends ocaml dune
-  (lwt (= 5.7.0))
-  (ppx_expect (= v0.16.0))
-  (ppx_deriving (= 5.2.1))
-  (fmt (= 0.9.0))
-  (ptime (= 1.1.0))))
+  (lwt (>= 5.7))
+  (ppx_expect (and (>= v0.15) (< v0.17)))
+  (ppx_deriving (>= 5.2))
+  (fmt (>= 0.9))
+  (ptime (>= 1.1))))
diff --git a/talircd.opam b/talircd.opam
index dd7a15b..0cf0559 100644
--- a/talircd.opam
+++ b/talircd.opam
@@ -11,11 +11,11 @@ bug-reports: "https://git.lain.faith/iitalics/talircd/issues"
 depends: [
   "ocaml"
   "dune" {>= "3.8"}
-  "lwt" {= "5.7.0"}
-  "ppx_expect" {= "v0.16.0"}
-  "ppx_deriving" {= "5.2.1"}
-  "fmt" {= "0.9.0"}
-  "ptime" {= "1.1.0"}
+  "lwt" {>= "5.7"}
+  "ppx_expect" {>= "v0.15" & < "v0.17"}
+  "ppx_deriving" {>= "5.2"}
+  "fmt" {>= "0.9"}
+  "ptime" {>= "1.1"}
   "odoc" {with-doc}
 ]
 build: [