diff --git a/Project.toml b/Project.toml
index e4d85067..3939e35d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,7 +16,12 @@ VersionParsing = "81def892-9a0e-5fdd-b105-ffc91e053289"
 Conda = "1.9"
 MacroTools = "0.4, 0.5"
 VersionParsing = "1.0"
+
 julia = "1.4"
+Dates = "1.4"
+Libdl = "1.4"
+LinearAlgebra = "1.4"
+Serialization = "1.4"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/test/runtests.jl b/test/runtests.jl
index bc124a52..1486c480 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -393,12 +393,12 @@ const PyInt = pyversion < v"3" ? Int : Clonglong
     @test !ispynull(pyimport_conda("inspect", "not a conda package"))
     import Conda
     if PyCall.conda
-        # import pyzmq to test PR #294
-        let already_installed = "pyzmq" ∈ Conda._installed_packages()
-            @test !ispynull(pyimport_conda("zmq", "pyzmq"))
-            @test "pyzmq" ∈ Conda._installed_packages()
+        # import six to test PR #294
+        let already_installed = "six" ∈ Conda._installed_packages()
+            @test !ispynull(pyimport_conda("six", "six"))
+            @test "six" ∈ Conda._installed_packages()
             if !already_installed
-                Conda.rm("pyzmq")
+                Conda.rm("six")
             end
         end
     end