diff --git a/pkgs/servers/mail/dovecot/default.nix b/pkgs/servers/mail/dovecot/default.nix
index 5b13c1aac03f..7cc1226453b5 100644
--- a/pkgs/servers/mail/dovecot/default.nix
+++ b/pkgs/servers/mail/dovecot/default.nix
@@ -14,7 +14,7 @@
   libcap,
   coreutils,
   clucene_core_2,
-  icu,
+  icu75,
   libexttextcat,
   openldap,
   libsodium,
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
       zlib
       lz4
       clucene_core_2
-      icu
+      icu75
       libexttextcat
       openldap
       libsodium