diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac2612ae..add49c40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,7 @@
 
 ## Version `v0.6.18`
 
-- ![Feature][badge-feature] Extensions were added related to StaticArraysCore, FixedPointNumbers and ColorTypes to define additional `Vk.Format`/`Vk.format_type` mappings.
-- ![Enhancement][badge-enhancement] Vulkan.jl no longer depends on FixedPointNumbers.jl.
+- ![Feature][badge-feature] Extensions were added related to StaticArraysCore, FixedPointNumbers and ColorTypes to define additional `Vk.Format`/`Vk.format_type` mappings. However, due to https://github.com/JuliaLang/julia/issues/52511, these are not yet defined as package extensions, and the core packages were made direct dependencies instead of weak dependencies.
 
 ## Version `v0.6.16`
 - ![Feature][badge-feature] Dependencies between handles may be specified via `Vk.depends_on(x, handle)`, to ensure that a given handle is not destroyed before anything that depends on it. This leverages the reference counting system already implemented, which itself encodes such dependencies from a given parent handle and its children. See the docstring of `Vk.depends_on` for more details.
diff --git a/Project.toml b/Project.toml
index 61381c79..e882a68a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,7 +6,9 @@ authors = ["Cédric Belmant"]
 [deps]
 Accessors = "7d9f7c33-5ae7-4f3b-8dc6-eff91059b697"
 BitMasks = "a3e06817-fd65-4797-8291-16f435bc2529"
+ColorTypes = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
+FixedPointNumbers = "53c48c17-4a7d-5ca2-90c5-79b7896eea93"
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 Logging = "56ddb016-857b-54e1-b83d-db4d58db5568"
 MLStyle = "d8e11817-5142-5d16-987a-aa16d5891078"
@@ -14,21 +16,24 @@ PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
 Preferences = "21216c6a-2e73-6563-6e65-726566657250"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 ResultTypes = "08a2b407-ddc3-586a-afd6-c784ad1fffe2"
+StaticArraysCore = "1e83bf80-4336-4d27-bf5d-d5a4f845583c"
 StructEquality = "6ec83bb0-ed9f-11e9-3b4c-2b04cb4e219c"
 VulkanCore = "16167f82-ea26-5cba-b1de-ed6fd5e30a11"
 
 [weakdeps]
-ColorTypes = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
-FixedPointNumbers = "53c48c17-4a7d-5ca2-90c5-79b7896eea93"
-StaticArraysCore = "1e83bf80-4336-4d27-bf5d-d5a4f845583c"
+# ColorTypes = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
+# FixedPointNumbers = "53c48c17-4a7d-5ca2-90c5-79b7896eea93"
+# StaticArraysCore = "1e83bf80-4336-4d27-bf5d-d5a4f845583c"
 XCB = "16167f82-ea26-5cba-b1de-ed6fd5e30a10"
 
 [extensions]
-VulkanColorTypesExt = "ColorTypes"
-VulkanFixedPointNumbersExt = "FixedPointNumbers"
-VulkanFixedPointNumbersColorTypesExt = ["ColorTypes", "FixedPointNumbers"]
-VulkanFixedPointNumbersStaticArraysCoreExt = ["FixedPointNumbers", "StaticArraysCore"]
-VulkanStaticArraysCoreExt = "StaticArraysCore"
+# Don't make these extensions until precompilation issues raised
+# in https://github.com/JuliaLang/julia/issues/52511 are addressed.
+# VulkanColorTypesExt = "ColorTypes"
+# VulkanFixedPointNumbersExt = "FixedPointNumbers"
+# VulkanFixedPointNumbersColorTypesExt = ["ColorTypes", "FixedPointNumbers"]
+# VulkanFixedPointNumbersStaticArraysCoreExt = ["FixedPointNumbers", "StaticArraysCore"]
+# VulkanStaticArraysCoreExt = "StaticArraysCore"
 VulkanXCBExt = "XCB"
 
 [compat]
@@ -57,4 +62,4 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 XCB = "16167f82-ea26-5cba-b1de-ed6fd5e30a10"
 
 [targets]
-test = ["Test", "Documenter", "Pkg", "SwiftShader_jll", "ColorTypes", "XCB", "FixedPointNumbers", "StaticArraysCore"]
+test = ["Test", "Documenter", "Pkg", "SwiftShader_jll", "XCB"]
diff --git a/src/Vulkan.jl b/src/Vulkan.jl
index 5fc8689b..3e6ef384 100644
--- a/src/Vulkan.jl
+++ b/src/Vulkan.jl
@@ -84,6 +84,15 @@ function __init__()
     fill_dispatch_table()
 end
 
+# Extensions.
+# Turn these into extensions when precompilation issues raised in
+# in https://github.com/JuliaLang/julia/issues/52511 are addressed.
+include("../ext/VulkanFixedPointNumbersExt.jl")
+include("../ext/VulkanColorTypesExt.jl")
+include("../ext/VulkanFixedPointNumbersColorTypesExt.jl")
+include("../ext/VulkanStaticArraysCoreExt.jl")
+include("../ext/VulkanFixedPointNumbersStaticArraysCoreExt.jl")
+
 export
         # Wrapper
         VulkanStruct,
diff --git a/test/runtests.jl b/test/runtests.jl
index f8afd59d..e2ec4496 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -8,6 +8,6 @@ using Accessors: @set
     include("dispatch.jl")
     include("formats.jl")
     @test Vulkan.precompile_workload()
-    isdefined(Base, :get_extension) && include("extensions.jl")
+    include("extensions.jl")
     VERSION ≥ v"1.12" && include("doctests.jl")
 end;