diff --git a/Project.toml b/Project.toml
index 4125b25..d292d6c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -29,7 +29,7 @@ LinearAlgebra = "1.9"
 PrecompileTools = "1.2"
 QuantumClifford = "0.8.19"
 QuantumInterface = "0.3.3"
-QuantumOpticsBase = "0.4.18"
+QuantumOpticsBase = "0.4.19"
 SymbolicUtils = "1.5"
 Symbolics = "5.13"
 TermInterface = "0.3"