diff --git a/flake.lock b/flake.lock
index cd1bb53..8e99b48 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "cachix": {
       "locked": {
-        "lastModified": 1617042094,
-        "narHash": "sha256-c8w5/Dz+r8gHIGZs1BHJPSzpP3Sga/BYebRkqBoDANY=",
+        "lastModified": 1617786842,
+        "narHash": "sha256-nuhewc9ANLkY2dBc9ikBQmy5EdCPElHbxd/pU96HdG0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "310885ec804f9fa0db5c705c7f5d35d415f50564",
+        "rev": "d6f63659a7021051a46035373ed50fbea7e4e924",
         "type": "github"
       },
       "original": {
@@ -23,11 +23,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1617493660,
-        "narHash": "sha256-PnPSs6RkkI2M6GyB2iGsL6hgDTe01yk5ZGP9q/Q14M8=",
+        "lastModified": 1617894699,
+        "narHash": "sha256-zlG3xNXgqo5pbMmfq8YaqGoVjElHnTDnEz13A+pUbZY=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "25a6a6d2984e70c9a07c8f8a69ebe24e6c700abf",
+        "rev": "56f5f41ed42f7d476a7c79fa8ec71f5605487abf",
         "type": "github"
       },
       "original": {
@@ -74,11 +74,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1617082367,
-        "narHash": "sha256-W0cQPGjc4IVzryaGycuoS8KZkXafS1P23w/fcKLoD5Y=",
+        "lastModified": 1617899217,
+        "narHash": "sha256-gd5JHH7IkeoIQ/oiGZSqDpGdGt7DMRJTQ8JiD8+hdOQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "04a2b269d8921505a2969fc9ec25c1f517f2b307",
+        "rev": "9e377a6ce42dccd9b624ae4ce8f978dc892ba0e2",
         "type": "github"
       },
       "original": {
@@ -99,11 +99,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1617091432,
-        "narHash": "sha256-L501OfMSE3OadQaEAPTPPJCWdgn3R5hXWzP6EBTGAos=",
+        "lastModified": 1617904961,
+        "narHash": "sha256-M45PTFsPZ6mWQ3UxrTUxlO4D+bXaKQuAsjfcpKBcAa4=",
         "owner": "colemickens",
         "repo": "nixpkgs-wayland",
-        "rev": "c56fca9357685dea173d81a9be67f7e1375758e3",
+        "rev": "fadd4b3505bca3175f2a00c3e5810ed074b55bb8",
         "type": "github"
       },
       "original": {
diff --git a/overlays/hydrus.nix b/overlays/hydrus.nix
index 816fc8c..f2eccda 100644
--- a/overlays/hydrus.nix
+++ b/overlays/hydrus.nix
@@ -1,12 +1,16 @@
 final: prev: {
   hydrus = prev.hydrus.overrideAttrs (old: rec {
     pname = "hydrus";
-    version = "433";
-    src = prev.fetchFromGitHub {
-      owner = "hydrusnetwork";
-      repo = "hydrus";
-      rev = "v433";
-      sha256 = "sha256-RZKmtVSCkMuJxuGGgk92J0Y71aHRZYsaBmUZy/gC9Ms=";
+    version = "434";
+    src = builtins.fetchGit {
+      url = "https://github.com/hydrusnetwork/hydrus.git";
+      rev = "71bedccaeabf411307edeac3b03a0903d2c23ec8";
     };
+    postPatch = ''
+      sed 's;os\.path\.join(\sHC\.BIN_DIR,.*;"${prev.miniupnpc_2}/bin/upnpc";' \
+        -i ./hydrus/core/networking/HydrusNATPunch.py
+      sed 's;os\.path\.join(\sHC\.BIN_DIR,.*;"${prev.swftools}/bin/swfrender";' \
+        -i ./hydrus/core/HydrusFlashHandling.py
+    '';
   });
 }