diff --git a/Cargo.lock b/Cargo.lock
index 35221be70d7..bac846a4f20 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3495,9 +3495,9 @@ dependencies = [
 
 [[package]]
 name = "imbl"
-version = "2.0.3"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "978d142c8028edf52095703af2fad11d6f611af1246685725d6b850634647085"
+checksum = "bc3be8d8cd36f33a46b1849f31f837c44d9fa87223baee3b4bd96b8f11df81eb"
 dependencies = [
  "bitmaps",
  "imbl-sized-chunks",
diff --git a/fedimint-core/Cargo.toml b/fedimint-core/Cargo.toml
index f8c3b691d70..c0657c8aab1 100644
--- a/fedimint-core/Cargo.toml
+++ b/fedimint-core/Cargo.toml
@@ -54,7 +54,7 @@ secp256k1 = { version = "0.27.0", features = ["global-context", "rand-std"] }
 macro_rules_attribute = "0.2.0"
 bitvec = "1.0.1"
 parity-scale-codec = { version = "3.6.9", features = ["derive"] }
-imbl = "2.0.3"
+imbl = "3.0.0"
 backon = "=0.4.4" # don't upgrade unless really needed
 
 [target.'cfg(not(target_family = "wasm"))'.dependencies]