diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index eaa17f3736..3937bad5c3 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -3459,7 +3459,9 @@ (define-public python-language-server
     (propagated-inputs
      `(("python-pluggy" ,python-pluggy)
        ("python-jsonrpc-server" ,python-jsonrpc-server)
-       ("python-jedi" ,python-jedi)
+       ;; Note: Remove the special versions of Jedi and Parso when updating
+       ;; this package.
+       ("python-jedi" ,python-jedi-0.15)
        ("python-yapf" ,python-yapf)
        ("python-pyflakes" ,python-pyflakes)
        ("python-pydocstyle" ,python-pydocstyle)
@@ -11566,6 +11568,20 @@ (define-public python-jedi
 (define-public python2-jedi
   (package-with-python2 python-jedi))
 
+;; python-language-server requires 0.15 specifically.  Remove once unused.
+(define-public python-jedi-0.15
+  (package
+    (inherit python-jedi)
+    (version "0.15.2")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "jedi" version))
+              (sha256
+               (base32
+                "01zqasl690x1i6dq4mvh13pz0cw8i276xsivsrnn00x90iqm42g9"))))
+    (propagated-inputs
+     `(("python-parso" ,python-parso-0.5)))))
+
 (define-public ptpython
   (package
     (name "ptpython")
@@ -15885,6 +15901,19 @@ (define-public python-parso
 (define-public python2-parso
   (package-with-python2 python-parso))
 
+;; This version is required for Jedi@0.15, which in turn is needed for
+;; python-language-server.
+(define-public python-parso-0.5
+  (package
+    (inherit python-parso)
+    (version "0.5.2")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "parso" version))
+              (sha256
+               (base32
+                "1qgvrkpma7vylrk047mxxvqd66nwqk978n3ig2w8iz9m3bgjbksm"))))))
+
 (define-public python-async-generator
   (package
     (name "python-async-generator")