diff --git a/pkgs/by-name/am/ameba/package.nix b/pkgs/by-name/am/ameba/package.nix
index c1ce7a669fad..429e0ef8a062 100644
--- a/pkgs/by-name/am/ameba/package.nix
+++ b/pkgs/by-name/am/ameba/package.nix
@@ -1,10 +1,12 @@
 {
   lib,
   fetchFromGitHub,
-  crystal,
+  crystal_1_17,
   coreutils,
 }:
-
+let
+  crystal = crystal_1_17;
+in
 crystal.buildCrystalPackage rec {
   pname = "ameba";
   version = "1.6.4";
diff --git a/pkgs/by-name/bl/blahaj/package.nix b/pkgs/by-name/bl/blahaj/package.nix
index 258da854cfb8..b834d213e8fe 100644
--- a/pkgs/by-name/bl/blahaj/package.nix
+++ b/pkgs/by-name/bl/blahaj/package.nix
@@ -1,13 +1,16 @@
 {
   lib,
   stdenv,
-  crystal,
+  crystal_1_17,
   fetchFromGitHub,
   # https://crystal-lang.org/2019/09/06/parallelism-in-crystal/
   multithreading ? true,
   static ? stdenv.hostPlatform.isStatic,
 }:
 
+let
+  crystal = crystal_1_17;
+in
 crystal.buildCrystalPackage rec {
   pname = "blahaj";
   version = "2.2.0";
diff --git a/pkgs/by-name/in/invidious/package.nix b/pkgs/by-name/in/invidious/package.nix
index db6d48735876..d01f5bf3406a 100644
--- a/pkgs/by-name/in/invidious/package.nix
+++ b/pkgs/by-name/in/invidious/package.nix
@@ -1,7 +1,7 @@
 {
   lib,
   callPackage,
-  crystal,
+  crystal_1_16,
   fetchFromGitHub,
   librsvg,
   pkg-config,
@@ -27,6 +27,7 @@
 let
   # normally video.js is downloaded at build time
   videojs = callPackage ./videojs.nix { inherit versions; };
+  crystal = crystal_1_16;
 in
 crystal.buildCrystalPackage rec {
   pname = "invidious";
diff --git a/pkgs/development/compilers/crystal/default.nix b/pkgs/development/compilers/crystal/default.nix
index 367a08aa87cb..30c53688cbeb 100644
--- a/pkgs/development/compilers/crystal/default.nix
+++ b/pkgs/development/compilers/crystal/default.nix
@@ -325,5 +325,13 @@ rec {
     doCheck = false;
   };
 
-  crystal = crystal_1_16;
+  crystal_1_18 = generic {
+    version = "1.18.2";
+    sha256 = "sha256-bwKs9bwD1WfS95DSxVY5AjT5Q61jOsfAH897tmiurng=";
+    binary = binaryCrystal_1_10;
+    llvmPackages = llvmPackages_21;
+    doCheck = false;
+  };
+
+  crystal = crystal_1_18;
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9cb135f7a307..4244b8cb0152 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4467,6 +4467,7 @@ with pkgs;
     crystal_1_15
     crystal_1_16
     crystal_1_17
+    crystal_1_18
     crystal
     ;