diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5fd570c1..e1c5cc45 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -75,10 +75,12 @@ endif()
 if("m3shapes" IN_LIST ENABLE_MODULES)
     message(STATUS "Fetching M3Shapes module")
     include(FetchContent)
+    set(M3SHAPES_REV eb93964ab8583ae21c3a0bb9897f96ef9a1b5377)
     FetchContent_Declare(
         m3shapes_external
         GIT_REPOSITORY https://github.com/soramanew/m3shapes.git
-        GIT_TAG        356825d31f16052a782735cce264331cba0cb71b
+        GIT_TAG        ${M3SHAPES_REV}
+        SOURCE_DIR     "${CMAKE_BINARY_DIR}/_deps/m3shapes-${M3SHAPES_REV}"
     )
     FetchContent_MakeAvailable(m3shapes_external)
     message(STATUS "Done fetching M3Shapes module")
diff --git a/flake.lock b/flake.lock
index 627d5a8a..5d2d7c9b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -24,16 +24,17 @@
     "m3shapes": {
       "flake": false,
       "locked": {
-        "lastModified": 1777812556,
-        "narHash": "sha256-E5nqOucRQBWKuT31AMekmfgMywRdHgSbU86R7t4BKKA=",
+        "lastModified": 1781001698,
+        "narHash": "sha256-yJ7IFqIbFBhSB5iXQK1/z/l1V8SRhiK2CK+hTVvwW2o=",
         "owner": "soramanew",
         "repo": "m3shapes",
-        "rev": "356825d31f16052a782735cce264331cba0cb71b",
+        "rev": "eb93964ab8583ae21c3a0bb9897f96ef9a1b5377",
         "type": "github"
       },
       "original": {
         "owner": "soramanew",
         "repo": "m3shapes",
+        "rev": "eb93964ab8583ae21c3a0bb9897f96ef9a1b5377",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index a75debf7..ee37219f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,7 +16,7 @@
     };
 
     m3shapes = {
-      url = "github:soramanew/m3shapes/356825d31f16052a782735cce264331cba0cb71b";
+      url = "github:soramanew/m3shapes/eb93964ab8583ae21c3a0bb9897f96ef9a1b5377";
       flake = false;
     };
   };