diff --git a/pkgs/development/beam-modules/elixir-ls/default.nix b/pkgs/development/beam-modules/elixir-ls/default.nix
index 79945e81af25..c419b7f30411 100644
--- a/pkgs/development/beam-modules/elixir-ls/default.nix
+++ b/pkgs/development/beam-modules/elixir-ls/default.nix
@@ -4,12 +4,12 @@
 
 let
   pname = "elixir-ls";
-  version = "0.19.0";
+  version = "0.20.0";
   src = fetchFromGitHub {
     owner = "elixir-lsp";
     repo = "elixir-ls";
     rev = "v${version}";
-    hash = "sha256-pd/ZkDpzlheEJfX7X6fFWY4Y5B5Y2EnJMBtuNHPuUJw=";
+    hash = "sha256-LVMwDoGR516rwNhhvibu7g4EsaG2O8WOb+Ja+nCQA+k=";
     fetchSubmodules = true;
   };
 in
@@ -21,7 +21,7 @@ mixRelease {
   mixFodDeps = fetchMixDeps {
     pname = "mix-deps-${pname}";
     inherit src version elixir;
-    hash = "sha256-yxcUljclKKVFbY6iUphnTUSqMPpsEiPcw4yUs6atU0c=";
+    hash = "sha256-yq2shufOZsTyg8iBGsRrAs6bC3iAa9vtUeS96c5xJl0=";
   };
 
   # elixir-ls is an umbrella app