diff --git a/pkgs/misc/emulators/wine/base.nix b/pkgs/misc/emulators/wine/base.nix
index 9fb90875b976..0f59892cce1e 100644
--- a/pkgs/misc/emulators/wine/base.nix
+++ b/pkgs/misc/emulators/wine/base.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation ((lib.optionalAttrs (! isNull buildScript) {
   ++ lib.optional cairoSupport           pkgs.cairo
   ++ lib.optional tiffSupport            pkgs.libtiff
   ++ lib.optional odbcSupport            pkgs.unixODBC
-  ++ lib.optional netapiSupport          pkgs.samba3_light
+  ++ lib.optional netapiSupport          pkgs.samba4
   ++ lib.optional cursesSupport          pkgs.ncurses
   ++ lib.optional vaSupport              pkgs.libva-full
   ++ lib.optional pcapSupport            pkgs.libpcap
diff --git a/pkgs/misc/emulators/wine/sources.nix b/pkgs/misc/emulators/wine/sources.nix
index aaaec67c751e..fb384aee746e 100644
--- a/pkgs/misc/emulators/wine/sources.nix
+++ b/pkgs/misc/emulators/wine/sources.nix
@@ -32,15 +32,15 @@ in rec {
 
   unstable = fetchurl rec {
     # NOTE: Don't forget to change the SHA256 for staging as well.
-    version = "2.17";
+    version = "2.18";
     url = "https://dl.winehq.org/wine/source/2.x/wine-${version}.tar.xz";
-    sha256 = "0sgazjn30ki2y3bjrd0xbpf870ii22wkyrmgaxcwbk23j1rrbp3y";
+    sha256 = "0l2gmk6g4c5ds29iqcvpmh5g8jdz6g6id7xkgiqps5bqk09322cz";
     inherit (stable) mono gecko32 gecko64;
   };
 
   staging = fetchFromGitHub rec {
     inherit (unstable) version;
-    sha256 = "11jm39g1kc77fvn02j9g8syyc095b6w2jashyr28v4gi7g0fqv6h";
+    sha256 = "02rh2lvx7sd8d6nhgpfq9crjh495k4k7i3wmgigs4m5rlip363s8";
     owner = "wine-compholio";
     repo = "wine-staging";
     rev = "v${version}";