diff --git a/interchaintest/go.mod b/interchaintest/go.mod
index 2ecc3626..f7e9ca66 100644
--- a/interchaintest/go.mod
+++ b/interchaintest/go.mod
@@ -9,7 +9,7 @@ require (
 	cosmossdk.io/x/upgrade v0.2.0
 	github.com/CosmWasm/wasmd v0.60.2
 	github.com/avast/retry-go/v4 v4.6.1
-	github.com/cometbft/cometbft v0.38.20
+	github.com/cometbft/cometbft v0.38.21
 	github.com/cosmos/cosmos-sdk v0.53.5
 	github.com/cosmos/gaia/v25 v25.2.0
 	github.com/cosmos/go-bip39 v1.0.0
diff --git a/interchaintest/go.sum b/interchaintest/go.sum
index 4d283bf9..984f86e5 100644
--- a/interchaintest/go.sum
+++ b/interchaintest/go.sum
@@ -834,8 +834,8 @@ github.com/cockroachdb/redact v1.1.6/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZ
 github.com/cockroachdb/tokenbucket v0.0.0-20250429170803-42689b6311bb h1:3bCgBvB8PbJVMX1ouCcSIxvsqKPYM7gs72o0zC76n9g=
 github.com/cockroachdb/tokenbucket v0.0.0-20250429170803-42689b6311bb/go.mod h1:7nc4anLGjupUW/PeY5qiNYsdNXj7zopG+eqsS7To5IQ=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
-github.com/cometbft/cometbft v0.38.20 h1:i9v9rvh3Z4CZvGSWrByAOpiqNq5WLkat3r/tE/B49RU=
-github.com/cometbft/cometbft v0.38.20/go.mod h1:UCu8dlHqvkAsmAFmWDRWNZJPlu6ya2fTWZlDrWsivwo=
+github.com/cometbft/cometbft v0.38.21 h1:qcIJSH9LiwU5s6ZgKR5eRbsLNucbubfraDs5bzgjtOI=
+github.com/cometbft/cometbft v0.38.21/go.mod h1:UCu8dlHqvkAsmAFmWDRWNZJPlu6ya2fTWZlDrWsivwo=
 github.com/cometbft/cometbft-db v1.0.4 h1:cezb8yx/ZWcF124wqUtAFjAuDksS1y1yXedvtprUFxs=
 github.com/cometbft/cometbft-db v1.0.4/go.mod h1:M+BtHAGU2XLrpUxo3Nn1nOCcnVCiLM9yx5OuT0u5SCA=
 github.com/consensys/gnark-crypto v0.18.0 h1:vIye/FqI50VeAr0B3dx+YjeIvmc3LWz4yEfbWBpTUf0=