diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fb50ca7532d5..0a4c5ceec152 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8589,8 +8589,8 @@ in
   };
 
   ccls = callPackage ../development/tools/misc/ccls {
-    llvmPackages = llvmPackages_latest;
-    stdenv = llvmPackages_latest.stdenv;
+    llvmPackages = llvmPackages_7;
+    stdenv = llvmPackages_7.stdenv;
   };
 
   credstash = with python3Packages; toPythonApplication credstash;