diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc2c8ab00..7492ec4d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## [v3.1.2](https://github.com/bandprotocol/chain/releases/tag/v3.1.2)
+
+* (bump) Use CometBFT v0.38.21
+
 ## [v3.1.1](https://github.com/bandprotocol/chain/releases/tag/v3.1.1)
 
 * (bump) Use CometBFT v0.38.19
diff --git a/go.mod b/go.mod
index 9d5a29f7a..d8e40e004 100644
--- a/go.mod
+++ b/go.mod
@@ -21,7 +21,7 @@ require (
 	github.com/bandprotocol/bothan/bothan-api/client/go-client v0.0.1-beta.3
 	github.com/bandprotocol/go-owasm v0.3.1
 	github.com/bytecodealliance/wasmtime-go/v20 v20.0.0
-	github.com/cometbft/cometbft v0.38.19
+	github.com/cometbft/cometbft v0.38.21
 	github.com/cometbft/cometbft-db v0.14.2
 	github.com/cosmos/cosmos-db v1.1.3
 	github.com/cosmos/cosmos-proto v1.0.0-beta.5
diff --git a/go.sum b/go.sum
index 676ada39b..64cf885d3 100644
--- a/go.sum
+++ b/go.sum
@@ -352,8 +352,8 @@ github.com/cockroachdb/tokenbucket v0.0.0-20230807174530-cc333fc44b06/go.mod h1:
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
 github.com/coinbase/rosetta-sdk-go/types v1.0.0 h1:jpVIwLcPoOeCR6o1tU+Xv7r5bMONNbHU7MuEHboiFuA=
 github.com/coinbase/rosetta-sdk-go/types v1.0.0/go.mod h1:eq7W2TMRH22GTW0N0beDnN931DW0/WOI1R2sdHNHG4c=
-github.com/cometbft/cometbft v0.38.19 h1:vNdtCkvhuwUlrcLPAyigV7lQpmmo+tAq8CsB8gZjEYw=
-github.com/cometbft/cometbft v0.38.19/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 v0.14.2 h1:APopDJJLECOnVncCN4VCBzi3bciQOtZClzEU+F21kTE=
 github.com/cometbft/cometbft-db v0.14.2/go.mod h1:kduimHRBou+T4y2nvPVf5OpRkLh2PZna0BFz4Ztr/co=
 github.com/containerd/continuity v0.3.0 h1:nisirsYROK15TAMVukJOUyGJjz4BNQJBVsNvAXZJ/eg=