diff --git a/.changelog/unreleased/dependencies/3474-bump-ics.md b/.changelog/unreleased/dependencies/3474-bump-ics.md
new file mode 100644
index 0000000000..d7435890c4
--- /dev/null
+++ b/.changelog/unreleased/dependencies/3474-bump-ics.md
@@ -0,0 +1,3 @@
+- Bump [ICS](https://github.com/cosmos/interchain-security) to
+  [v6.4.0](https://github.com/cosmos/interchain-security/releases/tag/v6.4.0).
+  ([\#3474](https://github.com/cosmos/gaia/pull/3474))
diff --git a/.changelog/unreleased/state-breaking/3474-bump-ics.md b/.changelog/unreleased/state-breaking/3474-bump-ics.md
new file mode 100644
index 0000000000..d7435890c4
--- /dev/null
+++ b/.changelog/unreleased/state-breaking/3474-bump-ics.md
@@ -0,0 +1,3 @@
+- Bump [ICS](https://github.com/cosmos/interchain-security) to
+  [v6.4.0](https://github.com/cosmos/interchain-security/releases/tag/v6.4.0).
+  ([\#3474](https://github.com/cosmos/gaia/pull/3474))
diff --git a/go.mod b/go.mod
index 669d63648e..9f22196b2f 100644
--- a/go.mod
+++ b/go.mod
@@ -30,7 +30,7 @@ require (
 	github.com/cosmos/ibc-apps/modules/rate-limiting/v8 v8.0.0
 	github.com/cosmos/ibc-go/modules/capability v1.0.1
 	github.com/cosmos/ibc-go/v8 v8.5.2
-	github.com/cosmos/interchain-security/v6 v6.4.0-rc0
+	github.com/cosmos/interchain-security/v6 v6.4.0
 	github.com/google/gofuzz v1.2.0
 	github.com/gorilla/mux v1.8.1
 	github.com/ory/dockertest/v3 v3.11.0
diff --git a/go.sum b/go.sum
index a190185948..b1f96fa993 100644
--- a/go.sum
+++ b/go.sum
@@ -453,8 +453,8 @@ github.com/cosmos/ibc-go/v8 v8.5.2 h1:27s9oeD2AxLQF3e9BQsYt9doONyZ7FwZi/qkBv6Sdk
 github.com/cosmos/ibc-go/v8 v8.5.2/go.mod h1:P5hkAvq0Qbg0h18uLxDVA9q1kOJ0l36htMsskiNwXbo=
 github.com/cosmos/ics23/go v0.11.0 h1:jk5skjT0TqX5e5QJbEnwXIS2yI2vnmLOgpQPeM5RtnU=
 github.com/cosmos/ics23/go v0.11.0/go.mod h1:A8OjxPE67hHST4Icw94hOxxFEJMBG031xIGF/JHNIY0=
-github.com/cosmos/interchain-security/v6 v6.4.0-rc0 h1:zTpIwmbcZeQ0OXkGebSd42ltNUSc+a/epv1UyquJ8c4=
-github.com/cosmos/interchain-security/v6 v6.4.0-rc0/go.mod h1:yTbAxgcNKQ+/x2obvnHtxnOjQ5AcML4gb9V0P0e1rds=
+github.com/cosmos/interchain-security/v6 v6.4.0 h1:MfIWi4mKms7PQgTkjFUfb0iJT4iLyC3F1Tj6KtEEbQA=
+github.com/cosmos/interchain-security/v6 v6.4.0/go.mod h1:yTbAxgcNKQ+/x2obvnHtxnOjQ5AcML4gb9V0P0e1rds=
 github.com/cosmos/keyring v1.2.0 h1:8C1lBP9xhImmIabyXW4c3vFjjLiBdGCmfLUfeZlV1Yo=
 github.com/cosmos/keyring v1.2.0/go.mod h1:fc+wB5KTk9wQ9sDx0kFXB3A0MaeGHM9AwRStKOQ5vOA=
 github.com/cosmos/ledger-cosmos-go v0.13.3 h1:7ehuBGuyIytsXbd4MP43mLeoN2LTOEnk5nvue4rK+yM=