diff --git a/etc/nix/shell.nix b/etc/nix/shell.nix
index 23c506b..3852571 100644
--- a/etc/nix/shell.nix
+++ b/etc/nix/shell.nix
@@ -136,10 +136,10 @@ let
 ; wownero-source =
     nixpkgs.fetchFromGitHub
     {
-      owner = "fuwa0529"
+      owner = "wownero"
     ; repo = "wownero"
-    ; rev = "8ca7e3"
-    ; sha256 = "07h8wiq8qm70m2s8bpalzx0fbrjl66khlha4qyfmpidpgv92daa6"
+    ; rev = "dev-v0.8"
+    ; sha256 = "13032pa9wx3h6x860f9iy28vdpkc94wzby153ig7hw4dixjqhs6w"
     ; }
 
 ; miniupnp-source =
@@ -151,6 +151,15 @@ let
     ; sha256 = "1f7jgll8lxz2l5lifgqafgx8694x0svgwyz8w8w4cwavm9lmah63"
     ; }
 
+; unbound-source =
+    nixpkgs.fetchFromGitHub
+    {
+      owner = "monero-project"
+    ; repo = "unbound"
+    ; rev = "9a77c29"
+    ; sha256 = "0dmm5pz2yf1lfand9k1c8x0mbrwynkpphh877b8jbavjrwiwsw35"
+    ; }
+
 ; in
 
 with nixpkgs;
@@ -216,6 +225,7 @@ with nixpkgs;
     export SRC_SODIUM=${sodium-source}
     export SRC_RANDOMWOW=${randomwow-source}
     export SRC_MINIUPNP_DIR=${miniupnp-source}
+    export SRC_UNBOUND_DIR=${unbound-source}
     export SRC_RAPIDJSON_DIR=${nixpkgs.rapidjson.src}
     export SRC_WOWNERO_DIR=${wownero-source}
 
diff --git a/etc/scripts/build-external-libs/wownero/fetch.sh b/etc/scripts/build-external-libs/wownero/fetch.sh
index cba3f01..f68b020 100755
--- a/etc/scripts/build-external-libs/wownero/fetch.sh
+++ b/etc/scripts/build-external-libs/wownero/fetch.sh
@@ -76,3 +76,10 @@ if [ -f $SRC_RANDOMWOW ]; then
 else
     git submodule update --init external/RandomWOW
 fi
+
+if [ -d $SRC_UNBOUND_DIR ]; then
+    echo "using pre-fetched unbound"
+    rsync -av --no-perms --no-owner --no-group --delete $SRC_UNBOUND_DIR/* external/unbound
+else
+    git submodule update --init external/unbound
+fi