diff --git a/tests/julia/README.md b/tests/julia/README.md
index f6d2996f..be3277c3 100644
--- a/tests/julia/README.md
+++ b/tests/julia/README.md
@@ -13,11 +13,13 @@
 - Tests use of a `Project.toml` file for Julia, using the repo2docker default
   version of Julia as specified in `julia_project.py`.
 
-### project-1.0.2
+### project-1.0.2-binder-dir
 
 - Tests use of a `Project.toml` file for Julia, using a version of Julia
   specified via `julia = "=1.0.2"` in `Project.toml`'s `[compat]` section.
 
+- Test use of a `.binder` directory.
+
 ### require
 
 - Tests use of a `REQUIRE` file for Julia, using the repo2docker default version
diff --git a/tests/julia/project-1.0.2/Project.toml b/tests/julia/project-1.0.2-binder-dir/.binder/Project.toml
similarity index 100%
rename from tests/julia/project-1.0.2/Project.toml
rename to tests/julia/project-1.0.2-binder-dir/.binder/Project.toml
diff --git a/tests/julia/project-1.0.2-binder-dir/Project.toml b/tests/julia/project-1.0.2-binder-dir/Project.toml
new file mode 100644
index 00000000..6fdcca7f
--- /dev/null
+++ b/tests/julia/project-1.0.2-binder-dir/Project.toml
@@ -0,0 +1,8 @@
+# A broken Project.toml, but the idea is that the test should ignore this file
+# anyhow as there is a .binder folder.
+#
+[deps]
+IteratorInterfaceExtensions = "invalid"
+
+[compat]
+julia = "=1.0.invalid"
diff --git a/tests/julia/project-1.0.2/verify b/tests/julia/project-1.0.2-binder-dir/verify
similarity index 100%
rename from tests/julia/project-1.0.2/verify
rename to tests/julia/project-1.0.2-binder-dir/verify
diff --git a/tests/julia/project-binder-dir/Manifest.toml b/tests/julia/project-binder-dir/Manifest.toml
deleted file mode 100644
index 1b72c7cd..00000000
--- a/tests/julia/project-binder-dir/Manifest.toml
+++ /dev/null
@@ -1,10 +0,0 @@
-# This file is machine-generated - editing it directly is not advised
-
-julia_version = "1.8.2"
-manifest_format = "2.0"
-project_hash = "8a6b9faef104dfa92a55997106baee3560dc25bc"
-
-[[deps.IteratorInterfaceExtensions]]
-git-tree-sha1 = "a3f24677c21f5bbe9d2a714f95dcd58337fb2856"
-uuid = "82899510-4779-5014-852e-03e436cf321d"
-version = "1.0.0"
diff --git a/tests/julia/project-binder-dir/Project.toml b/tests/julia/project-binder-dir/Project.toml
deleted file mode 100644
index ee7dad5c..00000000
--- a/tests/julia/project-binder-dir/Project.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[deps]
-IteratorInterfaceExtensions = "82899510-4779-5014-852e-03e436cf321d"
diff --git a/tests/julia/project-binder-dir/binder/Manifest.toml b/tests/julia/project-binder-dir/binder/Manifest.toml
deleted file mode 100644
index 7e4afe01..00000000
--- a/tests/julia/project-binder-dir/binder/Manifest.toml
+++ /dev/null
@@ -1,36 +0,0 @@
-# This file is machine-generated - editing it directly is not advised
-
-julia_version = "1.8.2"
-manifest_format = "2.0"
-project_hash = "663bcf2fe6af67425c484706d7562ccb3a370117"
-
-[[deps.Adapt]]
-deps = ["LinearAlgebra"]
-git-tree-sha1 = "195c5505521008abea5aee4f96930717958eac6f"
-uuid = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
-version = "3.4.0"
-
-[[deps.Artifacts]]
-uuid = "56f22d72-fd6d-98f1-02f0-08ddc0907c33"
-
-[[deps.CompilerSupportLibraries_jll]]
-deps = ["Artifacts", "Libdl"]
-uuid = "e66e0078-7015-5450-92f7-15fbd957f2ae"
-version = "0.5.2+0"
-
-[[deps.Libdl]]
-uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
-
-[[deps.LinearAlgebra]]
-deps = ["Libdl", "libblastrampoline_jll"]
-uuid = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-
-[[deps.OpenBLAS_jll]]
-deps = ["Artifacts", "CompilerSupportLibraries_jll", "Libdl"]
-uuid = "4536629a-c528-5b80-bd46-f80d51c5b363"
-version = "0.3.20+0"
-
-[[deps.libblastrampoline_jll]]
-deps = ["Artifacts", "Libdl", "OpenBLAS_jll"]
-uuid = "8e850b90-86db-534c-a0d3-1478176c7d93"
-version = "5.1.1+0"
diff --git a/tests/julia/project-binder-dir/binder/Project.toml b/tests/julia/project-binder-dir/binder/Project.toml
deleted file mode 100644
index b14e0e60..00000000
--- a/tests/julia/project-binder-dir/binder/Project.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[deps]
-Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
diff --git a/tests/julia/project-binder-dir/verify b/tests/julia/project-binder-dir/verify
deleted file mode 100755
index 32ce2c44..00000000
--- a/tests/julia/project-binder-dir/verify
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env julia
-
-if VERSION != v"1.8.2"
-    println("Julia version should be 1.8.2")
-    exit(1)
-end
-
-# Verify that the environment variables are set correctly for julia 1.0+
-@assert "julia" ∈ readdir(Sys.BINDIR)
-
-try
-    # Test that the package was installed.
-    using Adapt
-catch
-    println("Should be able to load Adapt")
-    exit(1)
-end
-
-try
-    using IteratorInterfaceExtensions
-    # Test that the package was not installed.
-    println("Should not be able to load IteratorInterfaceExtensions")
-    exit(1)
-catch
-end
-
-exit(0)