diff --git a/Manifest.toml b/Manifest.toml
index d9a5843..1f33388 100644
--- a/Manifest.toml
+++ b/Manifest.toml
@@ -1,22 +1,154 @@
 # This file is machine-generated - editing it directly is not advised
 
+[[ArgTools]]
+uuid = "0dad84c5-d112-42e6-8d28-ef12dabb789f"
+version = "1.1.1"
+
+[[Artifacts]]
+uuid = "56f22d72-fd6d-98f1-02f0-08ddc0907c33"
+
+[[Base64]]
+uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
+
 [[CEnum]]
 git-tree-sha1 = "215a9aa4a1f23fbd05b92769fdd62559488d70e9"
 uuid = "fa961155-64e5-5f13-b03f-caf6b980ea82"
 version = "0.4.1"
 
+[[Dates]]
+deps = ["Printf"]
+uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"
+
+[[Downloads]]
+deps = ["ArgTools", "LibCURL", "NetworkOptions"]
+uuid = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
+version = "1.4.0"
+
+[[InteractiveUtils]]
+deps = ["Markdown"]
+uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+
+[[JLLWrappers]]
+deps = ["Preferences"]
+git-tree-sha1 = "642a199af8b68253517b80bd3bfd17eb4e84df6e"
+uuid = "692b3bcd-3c85-4b1f-b108-f13ce0eb3210"
+version = "1.3.0"
+
 [[LLVM]]
-deps = ["CEnum", "Libdl", "Printf", "Unicode"]
-git-tree-sha1 = "b499c68a45249b0385585c62f4a9b62b5db8e691"
+deps = ["CEnum", "LLVMExtra_jll", "Libdl", "Printf", "Unicode"]
+git-tree-sha1 = "733abcbdc67337bb6aaf873c6bebbe1e6440a5df"
 uuid = "929cbde3-209d-540e-8aea-75f648917ca0"
-version = "3.7.1"
+version = "4.1.1"
+
+[[LLVMExtra_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
+git-tree-sha1 = "b36c0677a0549c7d1dc8719899a4133abbfacf7d"
+uuid = "dad2f222-ce93-54a1-a47d-0025e8a3acab"
+version = "0.0.6+0"
+
+[[LibCURL]]
+deps = ["LibCURL_jll", "MozillaCACerts_jll"]
+uuid = "b27032c2-a3e7-50c8-80cd-2d36dbcbfd21"
+version = "0.6.2"
+
+[[LibCURL_jll]]
+deps = ["Artifacts", "JLLWrappers", "LibSSH2_jll", "Libdl", "MbedTLS_jll", "Pkg", "Zlib_jll", "nghttp2_jll"]
+uuid = "deac9b47-8bc7-5906-a0fe-35ac56dc84c0"
+version = "7.73.0+4"
+
+[[LibGit2]]
+deps = ["Base64", "NetworkOptions", "Printf", "SHA"]
+uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"
+
+[[LibSSH2_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "MbedTLS_jll", "Pkg"]
+uuid = "29816b5a-b9ab-546f-933c-edad1886dfa8"
+version = "1.9.1+2"
 
 [[Libdl]]
 uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 
+[[Logging]]
+uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
+
+[[Markdown]]
+deps = ["Base64"]
+uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"
+
+[[MbedTLS_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
+uuid = "c8ffd9c3-330d-5841-b78e-0817d7145fa1"
+version = "2.24.0+2"
+
+[[MozillaCACerts_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
+uuid = "14a3606d-f60d-562e-9121-12d972cd8159"
+version = "2020.7.22"
+
+[[NetworkOptions]]
+uuid = "ca575930-c2e3-43a9-ace4-1e988b2c1908"
+version = "1.2.0"
+
+[[Pkg]]
+deps = ["Artifacts", "Dates", "Downloads", "LibGit2", "Libdl", "Logging", "Markdown", "Printf", "REPL", "Random", "SHA", "Serialization", "TOML", "Tar", "UUIDs", "p7zip_jll"]
+uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
+version = "1.6.0"
+
+[[Preferences]]
+deps = ["TOML"]
+git-tree-sha1 = "00cfd92944ca9c760982747e9a1d0d5d86ab1e5a"
+uuid = "21216c6a-2e73-6563-6e65-726566657250"
+version = "1.2.2"
+
 [[Printf]]
 deps = ["Unicode"]
 uuid = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 
+[[REPL]]
+deps = ["InteractiveUtils", "Markdown", "Sockets", "Unicode"]
+uuid = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
+
+[[Random]]
+deps = ["Serialization"]
+uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+
+[[SHA]]
+uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"
+
+[[Serialization]]
+uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
+
+[[Sockets]]
+uuid = "6462fe0b-24de-5631-8697-dd941f90decc"
+
+[[TOML]]
+deps = ["Dates"]
+uuid = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
+version = "1.0.0"
+
+[[Tar]]
+deps = ["ArgTools", "SHA"]
+uuid = "a4e569a6-e804-4fa4-b0f3-eef7a1d5b13e"
+version = "1.9.1"
+
+[[UUIDs]]
+deps = ["Random", "SHA"]
+uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
+
 [[Unicode]]
 uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
+
+[[Zlib_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
+uuid = "83775a58-1f1d-513f-b197-d71354ab007a"
+version = "1.2.12+1"
+
+[[nghttp2_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
+uuid = "8e850ede-7688-5339-a07c-302acd2aaf8d"
+version = "1.41.0+1"
+
+[[p7zip_jll]]
+deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
+uuid = "3f19e933-33d8-53b3-aaab-bd5110c3b7a0"
+version = "16.2.1+1"
diff --git a/Project.toml b/Project.toml
index ff31494..0d2b515 100644
--- a/Project.toml
+++ b/Project.toml
@@ -8,7 +8,7 @@ LLVM = "929cbde3-209d-540e-8aea-75f648917ca0"
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 
 [compat]
-LLVM = "3.7"
+LLVM = "4"
 julia = "1.6"
 
 [extras]
diff --git a/src/UProbes.jl b/src/UProbes.jl
index 0f74b34..83b1df7 100644
--- a/src/UProbes.jl
+++ b/src/UProbes.jl
@@ -122,8 +122,8 @@ _.stapsdt.base: .space 1
 .endif
 """
 
-    LLVM.Interop.JuliaContext() do ctx
-    mod = LLVM.Module("uprobe_$(provider)_$(name)", ctx)
+    LLVM.Interop.Context() do ctx
+    mod = LLVM.Module("uprobe_$(provider)_$(name)"; ctx)
 
     # Create semaphore variable
     int16_t = LLVM.Int16Type(ctx)
@@ -139,8 +139,8 @@ _.stapsdt.base: .space 1
     initializer!(gdb_unhappy, ConstantInt(int16_t, 0))
 
     # create function that will do a call to nop assembly
-    rettyp = convert(LLVMType, Nothing, ctx)
-    argtyp = LLVMType[convert.(Ref(LLVMType), args, Ref(ctx))...]
+    rettyp = convert(LLVMType, Nothing; ctx)
+    argtyp = LLVMType[convert.(Ref(LLVMType), args; ctx)...]
 
     ft = LLVM.FunctionType(rettyp, argtyp)
     f = LLVM.Function(mod, string("__uprobe_", provider, "_", name), ft)
@@ -150,7 +150,7 @@ _.stapsdt.base: .space 1
 
     # generate IR
     Builder(ctx) do builder
-        entry = BasicBlock(f, "entry", ctx)
+        entry = BasicBlock(f, "entry"; ctx)
         position!(builder, entry)
 
         val = call!(builder, inline_asm, collect(parameters(f)))
@@ -160,7 +160,7 @@ _.stapsdt.base: .space 1
     triple = LLVM.triple()
     target = LLVM.Target(; triple=triple)
     objfile = tempname()
-    TargetMachine(target, triple, "", "", LLVM.API.LLVMCodeGenLevelDefault, LLVM.API.LLVMRelocPIC) do tm
+    TargetMachine(target, triple, "", ""; reloc=LLVM.API.LLVMRelocPIC) do tm
         LLVM.emit(tm, mod, LLVM.API.LLVMObjectFile, objfile)
     end