diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 9a16c59..a208fb5 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -63,3 +63,23 @@ jobs:
     - name: Run macro tests
       working-directory: ./ascent_macro
       run: cargo test test  
+  
+  dependency-check:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v2
+      - run: cargo --version
+      
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+            override: true
+            toolchain: nightly
+
+      - uses: taiki-e/install-action@cargo-hack
+      - uses: taiki-e/install-action@cargo-minimal-versions
+
+      - name: cargo minimal-versions
+        run: cargo +stable minimal-versions check --workspace --all-features --ignore-private -v
+  
\ No newline at end of file
diff --git a/ascent_macro/Cargo.toml b/ascent_macro/Cargo.toml
index 5240831..125deca 100644
--- a/ascent_macro/Cargo.toml
+++ b/ascent_macro/Cargo.toml
@@ -13,11 +13,11 @@ proc-macro = true
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-syn = { version = "1.0", features = ["derive", "full", "extra-traits", "visit-mut"] } 
+syn = { version = "1.0.109", features = ["derive", "full", "extra-traits", "visit-mut"] } 
 quote = "1.0"
 ascent_base = { version = "=0.5.0", path = "../ascent_base" }
 proc-macro2 = "1.0"
-itertools = "0.10"
+itertools = "0.12.0"
 petgraph = "0.6.0"
 derive-syn-parse = "0.1.5"
 lazy_static = "1.4.0"