diff --git a/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
index 1e80f635f067..4bbd46428524 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
@@ -1129,6 +1129,15 @@ Superuser created successfully.
           would be parsed as 3 parameters.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          The <literal>coursier</literal> package’s binary was renamed
+          from <literal>coursier</literal> to <literal>cs</literal>.
+          Completions which haven’t worked for a while should now work
+          with the renamed binary. To keep using
+          <literal>coursier</literal>, you can create a shell alias.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
   <section xml:id="sec-release-21.11-notable-changes">
diff --git a/nixos/doc/manual/release-notes/rl-2111.section.md b/nixos/doc/manual/release-notes/rl-2111.section.md
index a598257f36c0..36d03fd0b59b 100644
--- a/nixos/doc/manual/release-notes/rl-2111.section.md
+++ b/nixos/doc/manual/release-notes/rl-2111.section.md
@@ -349,6 +349,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 
 - `boot.kernelParams` now only accepts one command line parameter per string. This change is aimed to reduce common mistakes like "param = 12", which would be parsed as 3 parameters.
 
+- The `coursier` package's binary was renamed from `coursier` to `cs`. Completions which haven't worked for a while should now work with the renamed binary. To keep using `coursier`, you can create a shell alias.
+
 ## Other Notable Changes {#sec-release-21.11-notable-changes}
 
 
diff --git a/pkgs/development/tools/coursier/default.nix b/pkgs/development/tools/coursier/default.nix
index 64c48b702cf1..85f7e603bbb0 100644
--- a/pkgs/development/tools/coursier/default.nix
+++ b/pkgs/development/tools/coursier/default.nix
@@ -25,12 +25,12 @@ in stdenv.mkDerivation rec {
   nativeBuildInputs = [ makeWrapper ];
 
   buildCommand = ''
-    install -Dm555 $src $out/bin/coursier
-    patchShebangs $out/bin/coursier
-    wrapProgram $out/bin/coursier --prefix PATH ":" ${jre}/bin
+    install -Dm555 $src $out/bin/cs
+    patchShebangs $out/bin/cs
+    wrapProgram $out/bin/cs --prefix PATH ":" ${jre}/bin
 
     # copy zsh completion
-    install -Dm755 ${zshCompletion} $out/share/zsh/site-functions/_coursier
+    install -Dm755 ${zshCompletion} $out/share/zsh/site-functions/_cs
   '';
 
   passthru.updateScript = writeScript "update.sh" ''