diff --git a/pkgs/by-name/et/etherape/package.nix b/pkgs/by-name/et/etherape/package.nix
index a2b044238daa..ee77b6f1e1fb 100644
--- a/pkgs/by-name/et/etherape/package.nix
+++ b/pkgs/by-name/et/etherape/package.nix
@@ -6,7 +6,6 @@
   libtool,
   gtk3,
   libpcap,
-  goocanvas2,
   popt,
   itstool,
   libxml2,
@@ -14,12 +13,14 @@
 
 stdenv.mkDerivation rec {
   pname = "etherape";
-  version = "0.9.20";
+  version = "0.9.21";
   src = fetchurl {
     url = "mirror://sourceforge/etherape/etherape-${version}.tar.gz";
-    sha256 = "sha256-9UsQtWOXB1yYofGS4rMIF+ISWBsJKd0DBOFfqOr1n5Y=";
+    sha256 = "sha256-SckN87uIDTxg36xERMqPxdaLqPNrgg7V+Hc4HJoHF1w=";
   };
 
+  strictDeps = true;
+
   nativeBuildInputs = [
     itstool
     pkg-config
@@ -29,7 +30,6 @@ stdenv.mkDerivation rec {
     libtool
     gtk3
     libpcap
-    goocanvas2
     popt
   ];