diff --git a/tools/ci-build/runtime-versioner/src/command/patch.rs b/tools/ci-build/runtime-versioner/src/command/patch.rs
index 2bc2bacfe38b83230d7f67684fa68e4bf9424ec1..2984fbc17c26f558fd30084f7c3de37ba60aaf69 100644
--- a/tools/ci-build/runtime-versioner/src/command/patch.rs
+++ b/tools/ci-build/runtime-versioner/src/command/patch.rs
@@ -29,11 +29,6 @@ pub fn patch(args: PatchRuntime) -> Result<()> {
         bail!("aws-sdk-rust has a dirty working tree. Aborting.");
     }
 
-    step(
-        "Patching smithy-rs/gradle.properties with given crate version numbers",
-        || patch_gradle_properties(&smithy_rs, &args),
-    )?;
-
     // Use aws:sdk:assemble to generate both the smithy-rs runtime and AWS SDK
     // runtime crates with the correct version numbers.
     step("Generating an AWS SDK", || {
@@ -96,31 +91,6 @@ pub fn patch_with(args: PatchRuntimeWith) -> Result<()> {
     Ok(())
 }
 
-fn patch_gradle_properties(smithy_rs: &Repo, args: &PatchRuntime) -> Result<()> {
-    let props_path = smithy_rs.root.join("gradle.properties");
-    let props =
-        fs::read_to_string(&props_path).context("failed to read smithy-rs/gradle.properties")?;
-    let mut new_props = String::with_capacity(props.len());
-    for line in props.lines() {
-        if line.starts_with("smithy.rs.runtime.crate.stable.version=") {
-            new_props.push_str(&format!(
-                "smithy.rs.runtime.crate.stable.version={}",
-                args.stable_crate_version
-            ));
-        } else if line.starts_with("smithy.rs.runtime.crate.unstable.version=") {
-            new_props.push_str(&format!(
-                "smithy.rs.runtime.crate.unstable.version={}",
-                args.unstable_crate_version
-            ));
-        } else {
-            new_props.push_str(line);
-        }
-        new_props.push('\n');
-    }
-    fs::write(&props_path, new_props).context("failed to write smithy-rs/gradle.properties")?;
-    Ok(())
-}
-
 fn apply_version_only_dependencies(aws_sdk_rust: &Repo) -> Result<()> {
     aws_sdk_rust
         .cmd(
diff --git a/tools/ci-build/runtime-versioner/src/main.rs b/tools/ci-build/runtime-versioner/src/main.rs
index 08560799b2a2e04fe35a06361d8a66132481bb11..853395cb31f26389d5f01dc262770f48a69d87d5 100644
--- a/tools/ci-build/runtime-versioner/src/main.rs
+++ b/tools/ci-build/runtime-versioner/src/main.rs
@@ -59,11 +59,15 @@ pub struct PatchRuntime {
     #[arg(long)]
     previous_release_tag: Option<String>,
     /// Version number for stable crates.
+    ///
+    /// Deprecated: this argument is ignored
     #[arg(long)]
-    stable_crate_version: String,
+    stable_crate_version: Option<String>,
     /// Version number for unstable crates.
+    ///
+    /// Deprecated: this argument is ignored
     #[arg(long)]
-    unstable_crate_version: String,
+    unstable_crate_version: Option<String>,
 }
 
 #[derive(clap::Args, Clone)]
diff --git a/tools/ci-scripts/check-semver-hazards b/tools/ci-scripts/check-semver-hazards
index 460fb5a46cba10c0e7323f943868a99a213c561c..4ccd14b9f86c6c09cacfd6f2a745705236aca186 100755
--- a/tools/ci-scripts/check-semver-hazards
+++ b/tools/ci-scripts/check-semver-hazards
@@ -10,14 +10,9 @@
 C_YELLOW='\033[1;33m'
 C_RESET='\033[0m'
 
-if [ "$#" -ne 2 ]; then
-  echo "Usage: check-semver-hazards <stable-crate-version> <unstable-crate-version>"
-  exit 1
+if [ "$#" -ne 0 ]; then
+  echo "Unexpected arguments ignored"
 fi
-STABLE_CRATE_VERSION="$1"
-UNSTABLE_CRATE_VERSION="$2"
-echo "Stable crate version: ${STABLE_CRATE_VERSION}"
-echo "Unstable crate version: ${UNSTABLE_CRATE_VERSION}"
 
 # Need to allow warnings since there may be deprecations that the old SDK uses
 unset RUSTFLAGS
@@ -27,9 +22,7 @@ set -eux
 echo -e "${C_YELLOW}# Patching SDK...${C_RESET}"
 runtime-versioner patch-runtime \
   --sdk-path "$(pwd)/aws-sdk-rust" \
-  --smithy-rs-path "$(pwd)/smithy-rs" \
-  --stable-crate-version "${STABLE_CRATE_VERSION}" \
-  --unstable-crate-version "${UNSTABLE_CRATE_VERSION}"
+  --smithy-rs-path "$(pwd)/smithy-rs"
 
 # Testing just a small subset of the full SDK to check for semver hazards
 echo -e "${C_YELLOW}# Testing SDK...${C_RESET}"