diff --git a/conanfile.py b/conanfile.py
index 6edbf746..01899028 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -52,7 +52,7 @@ class LibqasmConan(ConanFile):
 
     def build_requirements(self):
         self.tool_requires("tree-gen/1.0.7")
-        self.tool_requires("zulu-openjdk/11.0.19")
+        self.tool_requires("zulu-openjdk/21.0.1")
         if self.settings.arch == "wasm":
             self.tool_requires("emsdk/3.1.50")
         if self.options.build_tests: