diff --git a/.github/workflows/TestBundledExport.yml b/.github/workflows/TestBundledExport.yml
index 0ab892fd3..93262824d 100644
--- a/.github/workflows/TestBundledExport.yml
+++ b/.github/workflows/TestBundledExport.yml
@@ -12,9 +12,9 @@ jobs:
         steps:
             - uses: actions/checkout@v4
 
-            - uses: julia-actions/setup-julia@v1
+            - uses: julia-actions/setup-julia@v2
               with:
-                  version: "1.8"
+                  version: "1.10"
 
             - name: Generate exports and check for warnings
               run: |
diff --git a/src/packages/Packages.jl b/src/packages/Packages.jl
index 13bf3517e..9b1f63a43 100644
--- a/src/packages/Packages.jl
+++ b/src/packages/Packages.jl
@@ -7,7 +7,7 @@ import LoggingExtras
 import .Configuration: CompilerOptions, _merge_notebook_compiler_options, _convert_to_flags
 
 const tiers = unique((
-    PkgCompat.PRESERVE_ALL_INSTALLED,
+    Pkg.PRESERVE_ALL_INSTALLED,
 	Pkg.PRESERVE_ALL,
 	Pkg.PRESERVE_DIRECT,
 	Pkg.PRESERVE_SEMVER,
@@ -289,7 +289,7 @@ function sync_nbpkg_core(
                         # changed_versions=Dict{String,Pair}(),
                         restart_recommended=👺 || (
                             (!isempty(to_remove) && old_manifest_keys != new_manifest_keys) ||
-                            used_tier ∉ (Pkg.PRESERVE_ALL, PkgCompat.PRESERVE_ALL_INSTALLED)
+                            used_tier ∉ (Pkg.PRESERVE_ALL, Pkg.PRESERVE_ALL_INSTALLED)
                         ),
                         restart_required=👺 || (
                             used_tier ∈ (Pkg.PRESERVE_SEMVER, Pkg.PRESERVE_NONE)
@@ -303,7 +303,7 @@ function sync_nbpkg_core(
 
     return (
         did_something=👺 || (use_plutopkg_old != use_plutopkg_new),
-        used_tier=PkgCompat.PRESERVE_ALL_INSTALLED,
+        used_tier=Pkg.PRESERVE_ALL_INSTALLED,
         # changed_versions=Dict{String,Pair}(),
         restart_recommended=👺 || false,
         restart_required=👺 || false,
diff --git a/src/packages/PkgCompat.jl b/src/packages/PkgCompat.jl
index 50ff1d491..58ef62af6 100644
--- a/src/packages/PkgCompat.jl
+++ b/src/packages/PkgCompat.jl
@@ -8,9 +8,6 @@ import Pkg.Types: VersionRange
 import RegistryInstances
 import ..Pluto
 
-const PRESERVE_ALL_INSTALLED = isdefined(Pkg, :PRESERVE_ALL_INSTALLED) ? Pkg.PRESERVE_ALL_INSTALLED : Pkg.PRESERVE_ALL
-
-
 @static if isdefined(Pkg,:REPLMode) && isdefined(Pkg.REPLMode,:complete_remote_package)
     const REPLMode = Pkg.REPLMode
 else
@@ -60,9 +57,7 @@ I tried to only use public API, except:
 ###
 
 
-const PkgContext = if isdefined(Pkg, :Context)
-	Pkg.Context
-elseif isdefined(Pkg, :Types) && isdefined(Pkg.Types, :Context)
+const PkgContext = if isdefined(Pkg, :Types) && isdefined(Pkg.Types, :Context)
 	Pkg.Types.Context
 elseif isdefined(Pkg, :API) && isdefined(Pkg.API, :Context)
 	Pkg.API.Context
@@ -341,7 +336,7 @@ end
 # (🐸 "Public API", but using PkgContext)
 function _package_versions_from_path(registry_entry_fullpath::AbstractString)::Vector{VersionNumber}
 	# compat
-    vd = @static if isdefined(Pkg, :Operations) && isdefined(Pkg.Operations, :load_versions) && hasmethod(Pkg.Operations.load_versions, (String,))
+    vd = @static if hasmethod(Pkg.Operations.load_versions, (String,))
         Pkg.Operations.load_versions(registry_entry_fullpath)
     else
         Pkg.Operations.load_versions(PkgContext(), registry_entry_fullpath)
diff --git a/src/runner/PlutoRunner/src/display/Exception.jl b/src/runner/PlutoRunner/src/display/Exception.jl
index cb0b2650b..a53601cab 100644
--- a/src/runner/PlutoRunner/src/display/Exception.jl
+++ b/src/runner/PlutoRunner/src/display/Exception.jl
@@ -34,7 +34,7 @@ end
 source_package(::Any) = nothing
 
 function format_output(val::CapturedException; context=default_iocontext)
-    if has_julia_syntax && val.ex isa PrettySyntaxError
+    if val.ex isa PrettySyntaxError
         dict = convert_parse_error_to_dict(val.ex.ex.detail)
         return dict, MIME"application/vnd.pluto.parseerror+object"()
     end
diff --git a/src/runner/PlutoRunner/src/display/syntax error.jl b/src/runner/PlutoRunner/src/display/syntax error.jl
index 901a75427..339f19a51 100644
--- a/src/runner/PlutoRunner/src/display/syntax error.jl	
+++ b/src/runner/PlutoRunner/src/display/syntax error.jl	
@@ -1,7 +1,4 @@
 
-const has_julia_syntax = isdefined(Base, :JuliaSyntax) && fieldcount(Base.Meta.ParseError) == 2
-
-
 # @codemirror/lint has only three levels
 function convert_julia_syntax_level(level)
     level == :error   ? "error" :
@@ -171,7 +168,7 @@ function throw_syntax_error(@nospecialize(syntax_err))
     syntax_err isa String && (syntax_err = "syntax: $syntax_err")
     syntax_err isa Exception || (syntax_err = ErrorException(syntax_err))
 
-    if has_julia_syntax && syntax_err isa Base.Meta.ParseError && syntax_err.detail isa Base.JuliaSyntax.ParseError
+    if syntax_err isa Base.Meta.ParseError && syntax_err.detail isa Base.JuliaSyntax.ParseError
         syntax_err = PrettySyntaxError(syntax_err)
     end