diff --git a/Project.toml b/Project.toml
index c26cc0c399..3d466d63b4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -32,7 +32,7 @@ ZygoteRules = "700de1a5-db45-46bc-99cf-38207098b444"
 
 [compat]
 Adapt = "3.5"
-BitIntegers = "0.2"
+BitIntegers = "0.2, 0.3"
 ChainRulesCore = "1.10"
 Compat = "2.1, 3, 4"
 Dictionaries = "0.3.5"
diff --git a/src/physics/lattices.jl b/src/physics/lattices.jl
index 42280edc6a..54b3c635f6 100644
--- a/src/physics/lattices.jl
+++ b/src/physics/lattices.jl
@@ -86,7 +86,7 @@ function square_lattice(Nx::Int, Ny::Int; kwargs...)::Lattice
         latt[b += 1] = LatticeBond(n, n + 1, x, y, x, y + 1)
       end
       if yperiodic && y == 1
-        latt[b += 1] = LatticeBond(n, n + Ny - 1, x, y, x, y + Ny)
+        latt[b += 1] = LatticeBond(n, n + Ny - 1, x, y, x, y + Ny - 1)
       end
     end
   end