diff --git a/Project.toml b/Project.toml
index 768186d..70e713b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -14,7 +14,7 @@ SemidefiniteModels = "169818f4-1a3d-53bf-95b3-11177825b1e3"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
-MathOptInterface = "0.9.1"
+MathOptInterface = "0.9.5"
 MathProgBase = "~0.7.0"
 SemidefiniteModels = "~0.1.1"
 julia = "1"
diff --git a/src/MOI_wrapper.jl b/src/MOI_wrapper.jl
index d1efbaa..fbfb78f 100644
--- a/src/MOI_wrapper.jl
+++ b/src/MOI_wrapper.jl
@@ -281,7 +281,10 @@ function MOI.get(m::Optimizer, ::MOI.TerminationStatus)
     end
 end
 
-function MOI.get(m::Optimizer, ::MOI.PrimalStatus)
+function MOI.get(m::Optimizer, attr::MOI.PrimalStatus)
+    if attr.N > MOI.get(m, MOI.ResultCount())
+        return MOI.NO_SOLUTION
+    end
     status = m.status
     if status == 0
         return MOI.FEASIBLE_POINT
@@ -298,7 +301,10 @@ function MOI.get(m::Optimizer, ::MOI.PrimalStatus)
     end
 end
 
-function MOI.get(m::Optimizer, ::MOI.DualStatus)
+function MOI.get(m::Optimizer, attr::MOI.DualStatus)
+    if attr.N > MOI.get(m, MOI.ResultCount())
+        return MOI.NO_SOLUTION
+    end
     status = m.status
     if status == 0
         return MOI.FEASIBLE_POINT
@@ -316,10 +322,12 @@ function MOI.get(m::Optimizer, ::MOI.DualStatus)
 end
 
 MOI.get(m::Optimizer, ::MOI.ResultCount) = 1
-function MOI.get(m::Optimizer, ::MOI.ObjectiveValue)
+function MOI.get(m::Optimizer, attr::MOI.ObjectiveValue)
+    MOI.check_result_index_bounds(m, attr)
     return m.objsign * m.pobj + m.objconstant
 end
-function MOI.get(m::Optimizer, ::MOI.DualObjectiveValue)
+function MOI.get(m::Optimizer, attr::MOI.DualObjectiveValue)
+    MOI.check_result_index_bounds(m, attr)
     return m.objsign * m.dobj + m.objconstant
 end
 struct PrimalSolutionMatrix <: MOI.AbstractModelAttribute end
@@ -364,23 +372,28 @@ function vectorize_block(M::AbstractMatrix{Cdouble}, blk::Integer, s::Type{MOI.P
     return v
 end
 
-function MOI.get(optimizer::Optimizer, ::MOI.VariablePrimal, vi::MOI.VariableIndex)
+function MOI.get(optimizer::Optimizer, attr::MOI.VariablePrimal, vi::MOI.VariableIndex)
+    MOI.check_result_index_bounds(optimizer, attr)
     blk, i, j = varmap(optimizer, vi)
     return block(MOI.get(optimizer, PrimalSolutionMatrix()), blk)[i, j]
 end
 
-function MOI.get(optimizer::Optimizer, ::MOI.ConstraintPrimal,
+function MOI.get(optimizer::Optimizer, attr::MOI.ConstraintPrimal,
                  ci::MOI.ConstraintIndex{MOI.VectorOfVariables, S}) where S<:SupportedSets
+    MOI.check_result_index_bounds(optimizer, attr)
     return vectorize_block(MOI.get(optimizer, PrimalSolutionMatrix()), block(optimizer, ci), S)
 end
-function MOI.get(m::Optimizer, ::MOI.ConstraintPrimal, ci::AFFEQ)
-    return m.b[ci.value]
+function MOI.get(optimizer::Optimizer, attr::MOI.ConstraintPrimal, ci::AFFEQ)
+    MOI.check_result_index_bounds(optimizer, attr)
+    return optimizer.b[ci.value]
 end
 
-function MOI.get(optimizer::Optimizer, ::MOI.ConstraintDual,
+function MOI.get(optimizer::Optimizer, attr::MOI.ConstraintDual,
                  ci::MOI.ConstraintIndex{MOI.VectorOfVariables, S}) where S<:SupportedSets
+    MOI.check_result_index_bounds(optimizer, attr)
     return vectorize_block(MOI.get(optimizer, DualSlackMatrix()), block(optimizer, ci), S)
 end
-function MOI.get(optimizer::Optimizer, ::MOI.ConstraintDual, ci::AFFEQ)
+function MOI.get(optimizer::Optimizer, attr::MOI.ConstraintDual, ci::AFFEQ)
+    MOI.check_result_index_bounds(optimizer, attr)
     return -MOI.get(optimizer, DualSolutionVector())[ci.value]
 end
diff --git a/test/MOI_wrapper.jl b/test/MOI_wrapper.jl
index 3220b70..973e45c 100644
--- a/test/MOI_wrapper.jl
+++ b/test/MOI_wrapper.jl
@@ -33,6 +33,8 @@ end
 
 @testset "Unit" begin
     MOIT.unittest(bridged, config, [
+        # `NumberOfThreads` not supported.
+        "number_threads",
         # `TimeLimitSec` not supported.
         "time_limit_sec",
         # SingleVariable objective of bridged variables, will be solved by objective bridges
@@ -64,5 +66,5 @@ end
         # Missing bridges
         "rootdets",
         # Does not support power and exponential cone
-        "pow", "logdet", "exp"])
+        "pow", "dualpow", "logdet", "exp", "dualexp"])
 end