diff --git a/Handbook/GNUmakefile b/Handbook/GNUmakefile
index 28fdd1b7..1dd892cd 100644
--- a/Handbook/GNUmakefile
+++ b/Handbook/GNUmakefile
@@ -119,6 +119,12 @@ SG_PLUGIN_LICENSE_THIRD_PARTY_FILE					:=	$(SG_PLUGIN_DIR)/LICENSE_THIRD_PARTY.m
 SG_PLUGIN_PLANNED_FEATURES_COMPLETION_STATUS_FILE	:=	$(SG_PLUGIN_DIR)/PLANNED_FEATURES_COMPLETION_STATUS.md
 SG_PLUGIN_PLATFORM_SUPPORT_MATRIX_FILE				:=	$(SG_PLUGIN_DIR)/PLATFORM_SUPPORT_MATRIX.md
 
+################################################################################
+# Rust/Cargo Settings
+################################################################################
+
+RUST_TOOLCHAIN_VERSION	:=	1.93.0
+
 ################################################################################
 # Version and Build Information
 ################################################################################
@@ -365,6 +371,8 @@ clean:
 .PHONY: install-build-deps
 install-build-deps:
 	@echo "Installing build dependencies if they have not already been installed..."
+	@rustup install $(RUST_TOOLCHAIN_VERSION)
+	@rustup override set $(RUST_TOOLCHAIN_VERSION)
 	@cargo install mdbook --version "0.5.2" --locked
 	@cargo install xq --vers "^0.4" --locked
 	@cargo install mdbook-pdf --vers "0.1.13" --locked
diff --git a/Handbook/src/appendix/changelog.md b/Handbook/src/appendix/changelog.md
index 40a28c66..76839c39 100644
--- a/Handbook/src/appendix/changelog.md
+++ b/Handbook/src/appendix/changelog.md
@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Documentation
 
+- Ensure deterministic dependency builds by pinning Rust toolchain.
 - Changelog errata fixes.
 - Minor changelog formatting fixes.