diff --git a/Dockerfile b/Dockerfile
index bef40e9..0f59993 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # ============================================================================
 # Stage 1: Builder - Full build environment
 # ============================================================================
-FROM rust:1.91-bookworm as builder
+FROM rust:1.98-bookworm as builder
 
 # Set working directory
 WORKDIR /build
diff --git a/Dockerfile.test b/Dockerfile.test
index 0a0c688..0541771 100644
--- a/Dockerfile.test
+++ b/Dockerfile.test
@@ -1,7 +1,7 @@
 # ============================================================================
 # Test Dockerfile - Runs all tests including CRS transformation tests
 # ============================================================================
-FROM rust:1.91-bookworm
+FROM rust:1.98-bookworm
 
 # Set working directory
 WORKDIR /workspace