diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a3430f71379..ae7dac89fba 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,6 +42,13 @@ jobs:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
       - uses: julia-actions/cache@v1
+      - name: MOI
+        shell: julia --project=@. {0}
+        run: |
+          using Pkg
+          Pkg.add([
+              PackageSpec(name="MutableArithmetics", rev="bl/zero_number"),
+          ])
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
         with:
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index e8e1145d4b1..0a9464ca184 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -19,7 +19,10 @@ jobs:
         shell: julia --color=yes --project=docs/ {0}
         run: |
           using Pkg
-          Pkg.develop(PackageSpec(path=pwd()))
+          Pkg.add([
+              PackageSpec(name="MutableArithmetics", rev="bl/zero_number"),
+              PackageSpec(path=pwd()),
+          ])
           Pkg.instantiate()
       - name: Build and deploy
         env:
diff --git a/src/macros.jl b/src/macros.jl
index 209c3ed3f41..c921525e123 100644
--- a/src/macros.jl
+++ b/src/macros.jl
@@ -300,11 +300,11 @@ Therefore, the result of [`build_constraint`](@ref) is converted in a call to
 """
 model_convert(::AbstractModel, rhs::Any) = rhs
 
-function model_convert(model::AbstractModel, set::MOI.AbstractScalarSet)
-    if MOI.Utilities.supports_shift_constant(typeof(set))
-        T = value_type(typeof(model))
-        return MOI.Utilities.shift_constant(set, zero(T))
-    end
+function model_convert(::AbstractModel, set::MOI.AbstractScalarSet)
+    #if MOI.Utilities.supports_shift_constant(typeof(set))
+    #    T = value_type(typeof(model))
+    #    return MOI.Utilities.shift_constant(set, zero(T))
+    #end
     return set
 end
 
diff --git a/src/macros/@constraint.jl b/src/macros/@constraint.jl
index 9789971cbe6..d4e8a0acf82 100644
--- a/src/macros/@constraint.jl
+++ b/src/macros/@constraint.jl
@@ -825,7 +825,7 @@ function build_constraint(
 end
 
 function build_constraint(error_fn::Function, f, set::Zeros, args...; kwargs...)
-    return build_constraint(error_fn, f, MOI.EqualTo(false), args...; kwargs...)
+    return build_constraint(error_fn, f, MOI.EqualTo(_MA.Zero()), args...; kwargs...)
 end
 
 function build_constraint(