diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 71ceefb819..4f25f33ab7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,7 +38,7 @@ jobs:
           - version: '1'
             os: windows-latest
             arch: x64
-          - version: '1.6'
+          - version: '1.10'
             os: ubuntu-latest
             arch: x64
           - version: '1'
diff --git a/Project.toml b/Project.toml
index ab1e6af1dd..930997db9b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,7 +7,7 @@ BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
 CodecBzip2 = "523fee87-0ab8-5b00-afb7-3ecf72e48cfd"
 CodecZlib = "944b1d66-785c-5afd-91f1-9de20f533193"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
-JSON3 = "0f8b85d8-7281-11e9-16c2-39a750bddbf1"
+JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MutableArithmetics = "d8a4904e-b15c-11e9-3269-09a3773c0cb0"
 NaNMath = "77ba4419-2d1f-58cd-9bb1-8ffee604a2e3"
@@ -23,18 +23,18 @@ BenchmarkTools = "1"
 CodecBzip2 = "0.6, 0.7, 0.8"
 CodecZlib = "0.6, 0.7"
 ForwardDiff = "0.10, 1"
-JSON3 = "1"
+JSON = "1"
 JSONSchema = "1"
-LinearAlgebra = "<0.0.1, 1.6"
+LinearAlgebra = "1"
 MutableArithmetics = "1"
 NaNMath = "0.3, 1"
 OrderedCollections = "1"
 PrecompileTools = "1"
-Printf = "<0.0.1, 1.6"
-SparseArrays = "<0.0.1, 1.6"
+Printf = "1"
+SparseArrays = "1"
 SpecialFunctions = "0.8, 1, 2"
-Test = "<0.0.1, 1.6"
-julia = "1.6"
+Test = "1"
+julia = "1.10"
 
 [extras]
 JSONSchema = "7d188eb4-7ad8-530c-ae41-71a32a6d4692"
diff --git a/src/FileFormats/MOF/MOF.jl b/src/FileFormats/MOF/MOF.jl
index ad8d98ceab..d15fa2104c 100644
--- a/src/FileFormats/MOF/MOF.jl
+++ b/src/FileFormats/MOF/MOF.jl
@@ -7,7 +7,7 @@
 module MOF
 
 import ..FileFormats
-import JSON3
+import JSON
 import MathOptInterface as MOI
 
 """
diff --git a/src/FileFormats/MOF/read.jl b/src/FileFormats/MOF/read.jl
index 89250cf66b..197f569508 100644
--- a/src/FileFormats/MOF/read.jl
+++ b/src/FileFormats/MOF/read.jl
@@ -13,7 +13,7 @@ function Base.read!(io::IO, model::Model)
     if !MOI.is_empty(model)
         error("Cannot read model from file as destination model is not empty.")
     end
-    object = JSON3.read(io, Dict{String,Any})
+    object = JSON.parse(io; dicttype = Dict{String,Any})
     file_version = _parse_mof_version(object["version"]::Dict{String,Any})
     if !(file_version in _SUPPORTED_VERSIONS)
         version = _SUPPORTED_VERSIONS[1]
diff --git a/src/FileFormats/MOF/write.jl b/src/FileFormats/MOF/write.jl
index 1226adcc8b..98d9c740f8 100644
--- a/src/FileFormats/MOF/write.jl
+++ b/src/FileFormats/MOF/write.jl
@@ -33,7 +33,7 @@ function Base.write(io::IO, model::Model)
     if has_scalar_nonlinear
         object = (; has_scalar_nonlinear = true, object...)
     end
-    JSON3.write(io, object)
+    Base.write(io, JSON.json(object))
     return
 end
 
diff --git a/test/FileFormats/MOF/MOF.jl b/test/FileFormats/MOF/MOF.jl
index 6eaa81ca8a..f607b6f172 100644
--- a/test/FileFormats/MOF/MOF.jl
+++ b/test/FileFormats/MOF/MOF.jl
@@ -8,7 +8,7 @@ module TestMOF
 
 using Test
 
-import JSON3
+import JSON
 import JSONSchema
 import MathOptInterface as MOI
 
@@ -17,7 +17,10 @@ const MOF = MOI.FileFormats.MOF
 const TEST_MOF_FILE = "test.mof.json"
 
 const SCHEMA = JSONSchema.Schema(
-    JSON3.read(read(MOI.FileFormats.MOF.SCHEMA_PATH, String), Dict{String,Any}),
+    JSON.parse(
+        read(MOI.FileFormats.MOF.SCHEMA_PATH, String);
+        dicttype = Dict{String,Any},
+    ),
 )
 
 function runtests()
@@ -40,7 +43,7 @@ function _validate(filename::String)
         "r",
         MOI.FileFormats.AutomaticCompression(),
     ) do io
-        object = JSON3.read(io, Dict{String,Any})
+        object = JSON.parse(io; dicttype = Dict{String,Any})
         ret = JSONSchema.validate(SCHEMA, object)
         if ret !== nothing
             error(
@@ -1565,7 +1568,7 @@ function test_use_nlp_block()
     io = IOBuffer()
     write(io, model)
     seekstart(io)
-    object = JSON3.read(io, Dict{String,Any})
+    object = JSON.parse(io; dicttype = Dict{String,Any})
     @test object["has_scalar_nonlinear"] == true
     @test JSONSchema.validate(SCHEMA, object) === nothing
     # Test (; use_nlp_block = nothing)