diff --git a/CHANGELOG.md b/CHANGELOG.md
index 979d44aee34e..5e4c89dd9e57 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -54,6 +54,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 
+* (baseapp) [#13983](https://github.com/cosmos/cosmos-sdk/pull/13983) Don't emit duplicate ante-handler events when a post-handler is defined.
 * (x/staking) [#14064](https://github.com/cosmos/cosmos-sdk/pull/14064) Set all fields in `redelegation.String()`.
 * (x/upgrade) [#13936](https://github.com/cosmos/cosmos-sdk/pull/13936) Make downgrade verification work again.
 * (x/group) [#13742](https://github.com/cosmos/cosmos-sdk/pull/13742) Fix `validate-genesis` when group policy accounts exist.
diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index 2f227f8b4bde..960f0e59c85c 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -739,7 +739,12 @@ func (app *BaseApp) runTx(mode runTxMode, txBytes []byte) (gInfo sdk.GasInfo, re
 		//
 		// Note: If the postHandler fails, we also revert the runMsgs state.
 		if app.postHandler != nil {
-			newCtx, err := app.postHandler(runMsgCtx, tx, mode == runTxModeSimulate)
+			// The runMsgCtx context currently contains events emitted by the ante handler.
+			// We clear this to correctly order events without duplicates.
+			// Note that the state is still preserved.
+			postCtx := runMsgCtx.WithEventManager(sdk.NewEventManager())
+
+			newCtx, err := app.postHandler(postCtx, tx, mode == runTxModeSimulate)
 			if err != nil {
 				return gInfo, nil, nil, priority, err
 			}