diff --git a/Cargo.lock b/Cargo.lock
index af8d0f8..ebf7054 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -121,7 +121,7 @@ version = "4.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf9804afaaf59a91e75b022a30fb7229a7901f60c755489cc61c9b423b836442"
 dependencies = [
- "heck",
+ "heck 0.4.1",
  "proc-macro2",
  "quote",
  "syn",
@@ -317,6 +317,12 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
 [[package]]
 name = "hermit-abi"
 version = "0.3.3"
@@ -580,17 +586,17 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "strum"
-version = "0.25.0"
+version = "0.26.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125"
+checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
 
 [[package]]
 name = "strum_macros"
-version = "0.25.3"
+version = "0.26.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23dc1fa9ac9c169a78ba62f0b841814b7abae11bdd047b9c58f893439e309ea0"
+checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
 dependencies = [
- "heck",
+ "heck 0.5.0",
  "proc-macro2",
  "quote",
  "rustversion",
diff --git a/conventional_commits_next_version_lib/Cargo.toml b/conventional_commits_next_version_lib/Cargo.toml
index 87a5b6a..2d9da25 100644
--- a/conventional_commits_next_version_lib/Cargo.toml
+++ b/conventional_commits_next_version_lib/Cargo.toml
@@ -26,8 +26,8 @@ git2 = { version = "0.17.2", default-features = false, features=[] }
 semver = "1.0.20"
 
 # For enum from _str etc for CLI usage.
-strum = "0.25.0"
-strum_macros = "0.25.3"
+strum = "0.26.0"
+strum_macros = "0.26.0"
 
 
 [dev-dependencies]