diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ce8a19d727..3e473a22a1c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,22 @@
+# 0.0.121 - Jan 22, 2024 - "Unwraps are Bad"
+
+## Bug Fixes
+ * Fix a deadlock when calling `batch_funding_transaction_generated` with
+   invalid input (#2841).
+
+## Security
+0.0.121 fixes a denial-of-service vulnerability which is reachable from
+untrusted input from peers in rare cases if we have a public channel or in
+common cases if `P2PGossipSync` is used.
+ * A peer that failed to complete its handshake would cause a reachable
+   `unwrap` in LDK since 0.0.119 when LDK attempts to broadcast gossip to all
+   peers (#2842).
+
+In total, this release features 4 files changed, 52 insertions, 10
+deletions in 4 commits from 2 authors, in alphabetical order:
+ * Jeffrey Czyz
+ * Matt Corallo
+
 # 0.0.120 - Jan 17, 2024 - "Unblinded Fuzzers"
 
 ## API Updates
diff --git a/lightning-background-processor/Cargo.toml b/lightning-background-processor/Cargo.toml
index a7e8c34faad..1872a1d0714 100644
--- a/lightning-background-processor/Cargo.toml
+++ b/lightning-background-processor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-background-processor"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Valentine Wallace <vwallace@protonmail.com>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning"
@@ -22,11 +22,11 @@ default = ["std"]
 
 [dependencies]
 bitcoin = { version = "0.30.2", default-features = false }
-lightning = { version = "0.0.120", path = "../lightning", default-features = false }
-lightning-rapid-gossip-sync = { version = "0.0.120", path = "../lightning-rapid-gossip-sync", default-features = false }
+lightning = { version = "0.0.121", path = "../lightning", default-features = false }
+lightning-rapid-gossip-sync = { version = "0.0.121", path = "../lightning-rapid-gossip-sync", default-features = false }
 
 [dev-dependencies]
 tokio = { version = "1.35", features = [ "macros", "rt", "rt-multi-thread", "sync", "time" ] }
-lightning = { version = "0.0.120", path = "../lightning", features = ["_test_utils"] }
-lightning-invoice = { version = "0.28.0", path = "../lightning-invoice" }
-lightning-persister = { version = "0.0.120", path = "../lightning-persister" }
+lightning = { version = "0.0.121", path = "../lightning", features = ["_test_utils"] }
+lightning-invoice = { version = "0.29.0", path = "../lightning-invoice" }
+lightning-persister = { version = "0.0.121", path = "../lightning-persister" }
diff --git a/lightning-block-sync/Cargo.toml b/lightning-block-sync/Cargo.toml
index 86cf2f346ef..5e41f4d19ae 100644
--- a/lightning-block-sync/Cargo.toml
+++ b/lightning-block-sync/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-block-sync"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Jeffrey Czyz", "Matt Corallo"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning"
@@ -20,11 +20,11 @@ rpc-client = [ "serde_json", "chunked_transfer" ]
 [dependencies]
 bitcoin = "0.30.2"
 hex = { package = "hex-conservative", version = "0.1.1", default-features = false }
-lightning = { version = "0.0.120", path = "../lightning" }
+lightning = { version = "0.0.121", path = "../lightning" }
 tokio = { version = "1.35", features = [ "io-util", "net", "time", "rt" ], optional = true }
 serde_json = { version = "1.0", optional = true }
 chunked_transfer = { version = "1.4", optional = true }
 
 [dev-dependencies]
-lightning = { version = "0.0.120", path = "../lightning", features = ["_test_utils"] }
+lightning = { version = "0.0.121", path = "../lightning", features = ["_test_utils"] }
 tokio = { version = "1.35", features = [ "macros", "rt" ] }
diff --git a/lightning-custom-message/Cargo.toml b/lightning-custom-message/Cargo.toml
index ceea1503640..fbec38431c4 100644
--- a/lightning-custom-message/Cargo.toml
+++ b/lightning-custom-message/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-custom-message"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Jeffrey Czyz"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning"
@@ -15,4 +15,4 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
 bitcoin = "0.30.2"
-lightning = { version = "0.0.120", path = "../lightning" }
+lightning = { version = "0.0.121", path = "../lightning" }
diff --git a/lightning-invoice/Cargo.toml b/lightning-invoice/Cargo.toml
index e4201e9e4fc..e0d3560c10b 100644
--- a/lightning-invoice/Cargo.toml
+++ b/lightning-invoice/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "lightning-invoice"
 description = "Data structures to parse and serialize BOLT11 lightning invoices"
-version = "0.28.0"
+version = "0.29.0"
 authors = ["Sebastian Geisler <sgeisler@wh2.tu-dresden.de>"]
 documentation = "https://docs.rs/lightning-invoice/"
 license = "MIT OR Apache-2.0"
@@ -21,7 +21,7 @@ std = ["bitcoin/std", "num-traits/std", "lightning/std", "bech32/std"]
 
 [dependencies]
 bech32 = { version = "0.9.0", default-features = false }
-lightning = { version = "0.0.120", path = "../lightning", default-features = false }
+lightning = { version = "0.0.121", path = "../lightning", default-features = false }
 secp256k1 = { version = "0.27.0", default-features = false, features = ["recovery", "alloc"] }
 num-traits = { version = "0.2.8", default-features = false }
 hashbrown = { version = "0.8", optional = true }
@@ -29,6 +29,6 @@ serde = { version = "1.0.118", optional = true }
 bitcoin = { version = "0.30.2", default-features = false }
 
 [dev-dependencies]
-lightning = { version = "0.0.120", path = "../lightning", default-features = false, features = ["_test_utils"] }
+lightning = { version = "0.0.121", path = "../lightning", default-features = false, features = ["_test_utils"] }
 hex = { package = "hex-conservative", version = "0.1.1", default-features = false }
 serde_json = { version = "1"}
diff --git a/lightning-net-tokio/Cargo.toml b/lightning-net-tokio/Cargo.toml
index 076dff16217..f779a4395b7 100644
--- a/lightning-net-tokio/Cargo.toml
+++ b/lightning-net-tokio/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-net-tokio"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Matt Corallo"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning/"
@@ -16,9 +16,9 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
 bitcoin = "0.30.2"
-lightning = { version = "0.0.120", path = "../lightning" }
+lightning = { version = "0.0.121", path = "../lightning" }
 tokio = { version = "1.35", features = [ "rt", "sync", "net", "time" ] }
 
 [dev-dependencies]
 tokio = { version = "1.35", features = [ "macros", "rt", "rt-multi-thread", "sync", "net", "time" ] }
-lightning = { version = "0.0.120", path = "../lightning", features = ["_test_utils"] }
+lightning = { version = "0.0.121", path = "../lightning", features = ["_test_utils"] }
diff --git a/lightning-persister/Cargo.toml b/lightning-persister/Cargo.toml
index 24ccb7f3077..aad5f2dc1e9 100644
--- a/lightning-persister/Cargo.toml
+++ b/lightning-persister/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-persister"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Valentine Wallace", "Matt Corallo"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning"
@@ -15,7 +15,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
 bitcoin = "0.30.2"
-lightning = { version = "0.0.120", path = "../lightning" }
+lightning = { version = "0.0.121", path = "../lightning" }
 
 [target.'cfg(windows)'.dependencies]
 windows-sys = { version = "0.48.0", default-features = false, features = ["Win32_Storage_FileSystem", "Win32_Foundation"] }
@@ -24,5 +24,5 @@ windows-sys = { version = "0.48.0", default-features = false, features = ["Win32
 criterion = { version = "0.4", optional = true, default-features = false }
 
 [dev-dependencies]
-lightning = { version = "0.0.120", path = "../lightning", features = ["_test_utils"] }
+lightning = { version = "0.0.121", path = "../lightning", features = ["_test_utils"] }
 bitcoin = { version = "0.30.2", default-features = false }
diff --git a/lightning-rapid-gossip-sync/Cargo.toml b/lightning-rapid-gossip-sync/Cargo.toml
index 86c69e22a18..5da607c9fa0 100644
--- a/lightning-rapid-gossip-sync/Cargo.toml
+++ b/lightning-rapid-gossip-sync/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-rapid-gossip-sync"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Arik Sosman <git@arik.io>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning"
@@ -15,11 +15,11 @@ no-std = ["lightning/no-std"]
 std = ["lightning/std"]
 
 [dependencies]
-lightning = { version = "0.0.120", path = "../lightning", default-features = false }
+lightning = { version = "0.0.121", path = "../lightning", default-features = false }
 bitcoin = { version = "0.30.2", default-features = false }
 
 [target.'cfg(ldk_bench)'.dependencies]
 criterion = { version = "0.4", optional = true, default-features = false }
 
 [dev-dependencies]
-lightning = { version = "0.0.120", path = "../lightning", features = ["_test_utils"] }
+lightning = { version = "0.0.121", path = "../lightning", features = ["_test_utils"] }
diff --git a/lightning-transaction-sync/Cargo.toml b/lightning-transaction-sync/Cargo.toml
index faeadadafa2..26a82809e06 100644
--- a/lightning-transaction-sync/Cargo.toml
+++ b/lightning-transaction-sync/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning-transaction-sync"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Elias Rohrer"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning"
@@ -23,7 +23,7 @@ electrum = ["electrum-client"]
 async-interface = []
 
 [dependencies]
-lightning = { version = "0.0.120", path = "../lightning", default-features = false, features = ["std"] }
+lightning = { version = "0.0.121", path = "../lightning", default-features = false, features = ["std"] }
 bitcoin = { version = "0.30.2", default-features = false }
 bdk-macros = "0.6"
 futures = { version = "0.3", optional = true }
@@ -31,7 +31,7 @@ esplora-client = { version = "0.6", default-features = false, optional = true }
 electrum-client = { version = "0.18.0", optional = true }
 
 [dev-dependencies]
-lightning = { version = "0.0.120", path = "../lightning", default-features = false, features = ["std", "_test_utils"] }
+lightning = { version = "0.0.121", path = "../lightning", default-features = false, features = ["std", "_test_utils"] }
 tokio = { version = "1.35.0", features = ["full"] }
 
 [target.'cfg(not(no_download))'.dev-dependencies]
diff --git a/lightning/Cargo.toml b/lightning/Cargo.toml
index 1cd112d33a1..1fe0f0dd119 100644
--- a/lightning/Cargo.toml
+++ b/lightning/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lightning"
-version = "0.0.120"
+version = "0.0.121"
 authors = ["Matt Corallo"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/lightningdevkit/rust-lightning/"