diff --git a/Common/Constants/include/CommonConstants/PhysicsConstants.h b/Common/Constants/include/CommonConstants/PhysicsConstants.h
index 5f169f799eb5b..189a935a19f1c 100644
--- a/Common/Constants/include/CommonConstants/PhysicsConstants.h
+++ b/Common/Constants/include/CommonConstants/PhysicsConstants.h
@@ -76,6 +76,7 @@ enum Pdg {
   kTriton = 1000010030,
   kHelium3 = 1000020030,
   kAlpha = 1000020040,
+  kLithium4 = 1000030040,
   kHyperTriton = 1010010030,
   kHyperHydrogen4 = 1010010040,
   kHyperHelium4 = 1010020040,
@@ -129,10 +130,11 @@ constexpr double MassDeuteron = 1.87561294257;
 constexpr double MassTriton = 2.80892113298;
 constexpr double MassHelium3 = 2.80839160743;
 constexpr double MassAlpha = 3.7273794066;
-constexpr double MassHyperTriton = 2.99131;
-constexpr double MassHyperHydrogen4 = 3.9226;
-constexpr double MassHyperHelium4 = 3.9217;
-constexpr double MassHyperHelium5 = 4.841;
+constexpr double MassLithium4 = 3.7513;
+constexpr double MassHyperTriton = 2.991134;
+constexpr double MassHyperHydrogen4 = 3.922434;
+constexpr double MassHyperHelium4 = 3.921728;
+constexpr double MassHyperHelium5 = 4.839961;
 constexpr double MassHyperHelium4Sigma = 3.995;
 
 /// \brief Declarations of masses for particles in ROOT PDG_t
diff --git a/Common/Constants/include/CommonConstants/make_pdg_header.py b/Common/Constants/include/CommonConstants/make_pdg_header.py
index 4fdfd052ff613..e37d54d21a784 100755
--- a/Common/Constants/include/CommonConstants/make_pdg_header.py
+++ b/Common/Constants/include/CommonConstants/make_pdg_header.py
@@ -131,6 +131,7 @@ class Pdg(Enum):
     kTriton = 1000010030
     kHelium3 = 1000020030
     kAlpha = 1000020040
+    kLithium4 = 1000030040
     kHyperTriton = 1010010030
     kHyperHydrogen4 = 1010010040
     kHyperHelium4 = 1010020040