diff --git a/CMakeLists.txt b/CMakeLists.txt
index 25632860b..75272065f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.14)
 project(
     simdjson
     # The version number is modified by tools/release.py
-    VERSION 3.12.0
+    VERSION 3.12.1
     DESCRIPTION "Parsing gigabytes of JSON per second"
     HOMEPAGE_URL "https://simdjson.org/"
     LANGUAGES CXX C
diff --git a/Doxyfile b/Doxyfile
index 98279c847..633a1fe47 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = simdjson
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "3.12.0"
+PROJECT_NUMBER         = "3.12.1"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/include/simdjson/simdjson_version.h b/include/simdjson/simdjson_version.h
index dd6bfbe07..ae2790163 100644
--- a/include/simdjson/simdjson_version.h
+++ b/include/simdjson/simdjson_version.h
@@ -4,7 +4,7 @@
 #define SIMDJSON_SIMDJSON_VERSION_H
 
 /** The version of simdjson being used (major.minor.revision) */
-#define SIMDJSON_VERSION "3.12.0"
+#define SIMDJSON_VERSION "3.12.1"
 
 namespace simdjson {
 enum {
@@ -19,7 +19,7 @@ enum {
   /**
    * The revision (major.minor.REVISION) of simdjson being used.
    */
-  SIMDJSON_VERSION_REVISION = 0
+  SIMDJSON_VERSION_REVISION = 1
 };
 } // namespace simdjson
 
diff --git a/singleheader/amalgamate.py b/singleheader/amalgamate.py
index 06626a8a6..7a2245a81 100755
--- a/singleheader/amalgamate.py
+++ b/singleheader/amalgamate.py
@@ -451,8 +451,9 @@ def create_zip():
     path = os.path.join(outdir, "singleheader.zip")
     print(f"Creating {path}")
     with zipfile.ZipFile(path, 'w') as zf:
-        for name in ["simdjson.cpp", "simdjson.h", "amalgamation_demo.cpp", "README.md"]:
+        for name in ["simdjson.cpp", "simdjson.h"]:
             source = os.path.join(outdir, name)
+            print(f"Adding {source}")
             zf.write(source, name)
     print(f"Created {path}")
 create_zip()
diff --git a/singleheader/simdjson.cpp b/singleheader/simdjson.cpp
index a36c04494..eacc3ce26 100644
--- a/singleheader/simdjson.cpp
+++ b/singleheader/simdjson.cpp
@@ -1,4 +1,4 @@
-/* auto-generated on 2025-01-27 20:34:35 -0500. Do not edit! */
+/* auto-generated on 2025-02-11 13:43:34 -0500. Do not edit! */
 /* including simdjson.cpp:  */
 /* begin file simdjson.cpp */
 #define SIMDJSON_SRC_SIMDJSON_CPP
diff --git a/singleheader/simdjson.h b/singleheader/simdjson.h
index fb82b032b..6a73a1ab3 100644
--- a/singleheader/simdjson.h
+++ b/singleheader/simdjson.h
@@ -1,4 +1,4 @@
-/* auto-generated on 2025-01-27 20:34:35 -0500. Do not edit! */
+/* auto-generated on 2025-02-11 13:43:34 -0500. Do not edit! */
 /* including simdjson.h:  */
 /* begin file simdjson.h */
 #ifndef SIMDJSON_H
@@ -2437,7 +2437,7 @@ namespace std {
 #define SIMDJSON_SIMDJSON_VERSION_H
 
 /** The version of simdjson being used (major.minor.revision) */
-#define SIMDJSON_VERSION "3.12.0"
+#define SIMDJSON_VERSION "3.12.1"
 
 namespace simdjson {
 enum {
@@ -2452,7 +2452,7 @@ enum {
   /**
    * The revision (major.minor.REVISION) of simdjson being used.
    */
-  SIMDJSON_VERSION_REVISION = 0
+  SIMDJSON_VERSION_REVISION = 1
 };
 } // namespace simdjson
 
diff --git a/tools/release.py b/tools/release.py
index 2908b79ea..9117e8013 100755
--- a/tools/release.py
+++ b/tools/release.py
@@ -184,8 +184,6 @@ else:
        if(detectedreadme != toversionstring(*newversion)):
            print(colored(255, 0, 0, "Consider updating the readme link to "+toversionstring(*newversion)))
 
-
-
 print("Please run the tests before issuing a release. \n")
 print("to issue release, enter \n git commit -a && git push  &&  git tag -a v"+toversionstring(*newversion)+" -m \"version "+toversionstring(*newversion)+"\" &&  git push --tags \n")