diff --git a/CHANGELOG.md b/CHANGELOG.md
index 485a8d0..d909808 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,12 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 # Changelog
 
+## [v1.0.3] - 2023-07-05
+
+### Improvement
+
+- (deps) Update cometbft `v0.34.29` with several minor bug fixes and low-severity security-fixes
+
 ## [v1.0.2] - 2023-06-09
 
 ### Improvements
diff --git a/go.mod b/go.mod
index c92142f..3000789 100644
--- a/go.mod
+++ b/go.mod
@@ -228,7 +228,8 @@ replace (
 	github.com/gin-gonic/gin => github.com/gin-gonic/gin v1.7.7
 	// use cosmos flavored protobufs
 	github.com/gogo/protobuf => github.com/regen-network/protobuf v1.3.3-alpha.regen.1
+	// replace broken goleveldb
 	github.com/syndtr/goleveldb => github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
-	// Informal Tendermint fork
-	github.com/tendermint/tendermint => github.com/cometbft/cometbft v0.34.28
+	// use cometbft
+	github.com/tendermint/tendermint => github.com/cometbft/cometbft v0.34.29
 )
diff --git a/go.sum b/go.sum
index c4c62b0..3b7e1ee 100644
--- a/go.sum
+++ b/go.sum
@@ -357,8 +357,8 @@ github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE
 github.com/coinbase/kryptology v1.8.0/go.mod h1:RYXOAPdzOGUe3qlSFkMGn58i3xUA8hmxYHksuq+8ciI=
 github.com/coinbase/rosetta-sdk-go v0.7.9 h1:lqllBjMnazTjIqYrOGv8h8jxjg9+hJazIGZr9ZvoCcA=
 github.com/coinbase/rosetta-sdk-go v0.7.9/go.mod h1:0/knutI7XGVqXmmH4OQD8OckFrbQ8yMsUZTG7FXCR2M=
-github.com/cometbft/cometbft v0.34.28 h1:gwryf55P1SWMUP4nOXpRVI2D0yPoYEzN+IBqmRBOsDc=
-github.com/cometbft/cometbft v0.34.28/go.mod h1:L9shMfbkZ8B+7JlwANEr+NZbBcn+hBpwdbeYvA5rLCw=
+github.com/cometbft/cometbft v0.34.29 h1:Q4FqMevP9du2pOgryZJHpDV2eA6jg/kMYxBj9ZTY6VQ=
+github.com/cometbft/cometbft v0.34.29/go.mod h1:L9shMfbkZ8B+7JlwANEr+NZbBcn+hBpwdbeYvA5rLCw=
 github.com/cometbft/cometbft-db v0.7.0 h1:uBjbrBx4QzU0zOEnU8KxoDl18dMNgDh+zZRUE0ucsbo=
 github.com/cometbft/cometbft-db v0.7.0/go.mod h1:yiKJIm2WKrt6x8Cyxtq9YTEcIMPcEe4XPxhgX59Fzf0=
 github.com/confio/ics23/go v0.9.0 h1:cWs+wdbS2KRPZezoaaj+qBleXgUk5WOQFMP3CQFGTr4=