diff --git a/flake.lock b/flake.lock
index ffc36a4..16751f8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1395,7 +1395,6 @@
         "stride-src": "stride-src",
         "umee-src": "umee-src",
         "wasmd-src": "wasmd-src",
-        "wasmd_next-src": "wasmd_next-src",
         "wasmvm_1-src": "wasmvm_1-src",
         "wasmvm_1_1_1-src": "wasmvm_1_1_1-src",
         "wasmvm_1_1_2-src": "wasmvm_1_1_2-src",
@@ -1647,31 +1646,16 @@
     "wasmd-src": {
       "flake": false,
       "locked": {
-        "narHash": "sha256-F0p555FEeA405tuLn82yUEbRZpJLs85GrUKvSrjTdjk=",
+        "lastModified": 1700749637,
+        "narHash": "sha256-rKbuaWcRdHXSI+acHrx/hCdGOx5prPd+Dmng4BVrhzs=",
         "owner": "CosmWasm",
         "repo": "wasmd",
-        "rev": "a347ace2ff41539fe06c68168bc6f28d6ca9fa52",
+        "rev": "7ea00e2ea858ed599141e322bd68171998a3259a",
         "type": "github"
       },
       "original": {
         "owner": "CosmWasm",
-        "ref": "v0.30.0",
-        "repo": "wasmd",
-        "type": "github"
-      }
-    },
-    "wasmd_next-src": {
-      "flake": false,
-      "locked": {
-        "narHash": "sha256-b+6XhBdKyQlrzsYxVRrDf4vHpv8GAJkGwHVfJ9sdf3U=",
-        "owner": "CosmWasm",
-        "repo": "wasmd",
-        "rev": "c2bb27d289f7f72f1471a4b33cb08fdfc8d66f63",
-        "type": "github"
-      },
-      "original": {
-        "owner": "CosmWasm",
-        "ref": "v0.40.0-rc.1",
+        "ref": "v0.50.0",
         "repo": "wasmd",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index f146345..b843c38 100644
--- a/flake.nix
+++ b/flake.nix
@@ -179,12 +179,9 @@
     composable-cosmos-src.url = "github:ComposableFi/composable-cosmos/v6.4.88";
     composable-cosmos-src.flake = false;
 
-    wasmd-src.url = "github:CosmWasm/wasmd/v0.30.0";
+    wasmd-src.url = "github:CosmWasm/wasmd/v0.50.0";
     wasmd-src.flake = false;
 
-    wasmd_next-src.url = "github:CosmWasm/wasmd/v0.40.0-rc.1";
-    wasmd_next-src.flake = false;
-
     wasmvm_1-src.url = "github:CosmWasm/wasmvm/v1.0.0";
     wasmvm_1-src.flake = false;
 
diff --git a/modules/packages.nix b/modules/packages.nix
index a47ee42..b805037 100644
--- a/modules/packages.nix
+++ b/modules/packages.nix
@@ -166,12 +166,7 @@
         };
         wasmd = import ../packages/wasmd.nix {
           inherit (inputs) wasmd-src;
-          inherit (self'.packages) libwasmvm_1_1_1;
-          inherit cosmosLib;
-        };
-        wasmd_next = import ../packages/wasmd_next.nix {
-          inherit (inputs) wasmd_next-src;
-          inherit (self'.packages) libwasmvm_1_2_3;
+          inherit (self'.packages) libwasmvm_1_5_0;
           inherit cosmosLib;
         };
         rollapp-evm = import ../packages/rollapp-evm.nix {
diff --git a/packages/wasmd.nix b/packages/wasmd.nix
index 855beaa..6ecdff8 100644
--- a/packages/wasmd.nix
+++ b/packages/wasmd.nix
@@ -1,17 +1,23 @@
 {
   wasmd-src,
   cosmosLib,
-  libwasmvm_1_1_1,
+  libwasmvm_1_5_0,
 }:
 cosmosLib.mkCosmosGoApp {
   name = "wasm";
-  version = "v0.30.0";
+  version = "v0.50.0";
+  goVersion = "1.21";
   src = wasmd-src;
   rev = wasmd-src.rev;
-  vendorHash = "sha256-8Uo/3SdXwblt87WU78gjpRPcHy+ZotmhF6xTyb3Jxe0";
+  vendorHash = "sha256-IS+WupPaOZgx1iJTHKbX8r6z3/9TsWamTEZCJbVpCOg=";
   tags = ["netgo"];
-  engine = "tendermint/tendermint";
-  preFixup = cosmosLib.wasmdPreFixupPhase libwasmvm_1_1_1 "wasmd";
+  engine = "cometbft/cometbft";
+  preFixup = cosmosLib.wasmdPreFixupPhase libwasmvm_1_5_0 "wasmd";
   dontStrip = true;
-  buildInputs = [libwasmvm_1_1_1];
+  buildInputs = [libwasmvm_1_5_0];
+
+  # main module (github.com/CosmWasm/wasmd) does not contain package github.com/CosmWasm/wasmd/tests/system
+  excludedPackages = ["tests/system"];
+
+  doCheck = false;
 }
diff --git a/packages/wasmd_next.nix b/packages/wasmd_next.nix
deleted file mode 100644
index 589d5fe..0000000
--- a/packages/wasmd_next.nix
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-  wasmd_next-src,
-  cosmosLib,
-  libwasmvm_1_2_3,
-}:
-cosmosLib.mkCosmosGoApp {
-  name = "wasm";
-  version = "v0.40.0-rc.1";
-  src = wasmd_next-src;
-  rev = wasmd_next-src.rev;
-  vendorHash = "sha256-FWpclJuuIkbcoXxRTeZwDR0wZP2eHkPKsu7xme5vLPg=";
-  tags = ["netgo"];
-  engine = "cometbft/cometbft";
-  preFixup = cosmosLib.wasmdPreFixupPhase libwasmvm_1_2_3 "wasmd";
-  dontStrip = true;
-  buildInputs = [libwasmvm_1_2_3];
-}