diff --git a/ci/before_script.jl b/ci/before_script.jl
index ad6ddc7..0eb2d38 100644
--- a/ci/before_script.jl
+++ b/ci/before_script.jl
@@ -6,10 +6,6 @@ else
     end
 end
 
-# Let PyCall.jl use Python interpreter from Conda.jl
-# See: https://github.com/JuliaPy/PyCall.jl
-ENV["PYTHON"] = ""
-
 @info "Pkg.clone(pwd())"
 Pkg.clone(pwd())
 
diff --git a/test/install_dependencies.jl b/test/install_dependencies.jl
index 9aeefa3..5051cfc 100644
--- a/test/install_dependencies.jl
+++ b/test/install_dependencies.jl
@@ -1,3 +1,14 @@
+if VERSION >= v"0.7.0-"
+    # Adding Pkg in test/REQUIRE would be an error in 0.6.  Using
+    # Project.toml still has some gotchas.  So:
+    Pkg = Base.require(Base.PkgId(Base.UUID(0x44cfe95a1eb252eab672e2afdf69b78f), "Pkg"))
+end
+
+# Let PyCall.jl use Python interpreter from Conda.jl
+# See: https://github.com/JuliaPy/PyCall.jl
+ENV["PYTHON"] = ""
+Pkg.build("PyCall")
+
 using Compat: @info
 using IPython