diff --git a/buildpack.toml b/buildpack.toml
index cc34264..29a06f4 100644
--- a/buildpack.toml
+++ b/buildpack.toml
@@ -117,9 +117,9 @@ api = "0.7"
     id = "tomcat"
     name = "Apache Tomcat"
     purl = "pkg:generic/apache-tomcat@11.0.1"
-    sha256 = ""
+    sha256 = "7e2470ac429434534910940e77d04c6d4c47e3a83d7130128be4d091d8d2ee68"
     source = "https://archive.apache.org/dist/tomcat/tomcat-11/v11.0.1/src/apache-tomcat-11.0.1-src.tar.gz"
-    source-sha256 = ""
+    source-sha256 = "357d1259242d38325b3a7785f2c435a0d3c5ecd0f6f7a0969d6ccac7715e0312"
     stacks = ["*"]
     uri = "https://archive.apache.org/dist/tomcat/tomcat-11/v11.0.1/bin/apache-tomcat-11.0.1.tar.gz"
     version = "11.0.1"