diff --git a/dune-project b/dune-project
index ae3456f..8666f7c 100644
--- a/dune-project
+++ b/dune-project
@@ -45,7 +45,7 @@
  (description "\nOcaml-solidity provides a Solidity parser and typechecker\n")
  (depends
    (ocaml (>= 4.08.0))
-   (solidity-common (= version))
+   (solidity-common (= :version))
    (hex ( >= 1 ))
    menhir
    ppx_inline_test
@@ -62,8 +62,8 @@
  (depends
    (ocaml (>= 4.08.0))
    (uutf ( >= 1 ))
-   (solidity-parser (= version))
-   (solidity-common (= version))
+   (solidity-parser (= :version))
+   (solidity-common (= :version))
    ez_hash
    ppx_inline_test
    ppx_expect
@@ -78,9 +78,9 @@
  (description "\nOcaml-solidity provides a Solidity parser and typechecker\n")
  (depends
    (ocaml (>= 4.08.0))
-   (solidity-typechecker (= version))
-   (solidity-parser (= version))
-   (solidity-common (= version))
+   (solidity-typechecker (= :version))
+   (solidity-parser (= :version))
+   (solidity-common (= :version))
    ppx_inline_test
    ppx_expect
    odoc
@@ -94,9 +94,9 @@
  (description "\nOcaml-solidity provides a Solidity parser and typechecker\n")
  (depends
    (ocaml (>= 4.08.0))
-   (solidity-typechecker (= version))
-   (solidity-parser (= version))
-   (solidity-common (= version))
+   (solidity-typechecker (= :version))
+   (solidity-parser (= :version))
+   (solidity-common (= :version))
    (alcotest ( >= 1.2 ))
    ppx_inline_test
    ppx_expect