diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2966ba1..64bca0d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.17.1] - 2024-02-25
+  - add unratified Ssdbltrp, Smdbltrp, and Sddbltrp extensions
+
 ## [3.17.0] - 2024-01-09
   - support march generation without custom extensions
 
diff --git a/riscv_config/__init__.py b/riscv_config/__init__.py
index 9eb8981..b752767 100644
--- a/riscv_config/__init__.py
+++ b/riscv_config/__init__.py
@@ -1,4 +1,4 @@
 from pkgutil import extend_path
 __path__ = extend_path(__path__, __name__)
-__version__ = '3.17.0'
+__version__ = '3.17.1'
 
diff --git a/riscv_config/constants.py b/riscv_config/constants.py
index ab410aa..2913757 100644
--- a/riscv_config/constants.py
+++ b/riscv_config/constants.py
@@ -33,7 +33,7 @@
         "Zpn", "Zpsf"
 ] + Zve_extensions + Zvl_extensions
 
-S_extensions = ['Smrnmi','Svnapot','Svadu', 'Sdext']
+S_extensions = ['Smrnmi','Smdbltrp', 'Ssdbltrp', 'Svnapot','Svadu', 'Sddbltrp', 'Sdext']
 
 sub_extensions = Z_extensions + S_extensions
 
diff --git a/setup.cfg b/setup.cfg
index d521827..fa73987 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.17.0
+current_version = 3.17.1
 commit = True
 tag = True