diff --git a/Cargo.toml b/Cargo.toml
index 0faec6f4..4586f037 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,6 +37,7 @@ repository = "https://github.com/openwsn-berkeley/lakers/"
 license = "BSD-3-Clause"
 readme = "shared/README.md"
 keywords = ["iot", "security", "protocol", "crypto", "edhoc"]
+categories = [ "no-std::no-alloc", "network-programming", "embedded" ]
 
 [workspace.dependencies]
 
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index ad996237..e24d5d1d 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -7,6 +7,7 @@ license.workspace = true
 description = "An implementation of EDHOC (RFC 9528)"
 repository.workspace = true
 keywords.workspace = true
+categories.workspace = true
 
 [dependencies]
 lakers-shared.workspace = true
diff --git a/shared/Cargo.toml b/shared/Cargo.toml
index db09b26d..8a8f3377 100644
--- a/shared/Cargo.toml
+++ b/shared/Cargo.toml
@@ -9,6 +9,7 @@ repository.workspace = true
 # It's implied, but still better for consistency to have it explicit.
 readme.workspace = true
 keywords.workspace = true
+categories.workspace = true
 
 [dependencies]
 pyo3 = { version = "0.20.2", features = ["extension-module"], optional = true }