diff --git a/build.zig.zon b/build.zig.zon
index 2bcfde8..b4f605a 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -25,7 +25,7 @@
     .dependencies = .{
         .@"raylib-zig" = .{
             .url = "https://github.com/Not-Nik/raylib-zig/archive/devel.tar.gz",
-            .hash = "1220c61380facb4480c01109fda97cf1a37f45308c522a84fdea142ca625593ddc2a",
+            .hash = "122058d3ea6318efb819d0bffba630afd1a459fa3a99b4bfe4b680a937d5de04d2fc",
         },
     },
     .paths = .{
diff --git a/src/main.zig b/src/main.zig
index df65c26..8088840 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -78,8 +78,8 @@ const Particle = struct {
         self.velocity.a.y += val;
     }
     pub fn applyForce(self: *Self, vec: pr.Vec) void {
-        self.acceleration.a.x = vec.a.x * 0.8;
-        self.acceleration.a.y = vec.a.y * 0.8;
+        self.acceleration.a.x += vec.a.x * 0.8;
+        self.acceleration.a.y += vec.a.y * 0.8;
         self.acceleration.a.z = vec.a.z;
         self.velocity.a.x *= 0.995;
         self.velocity.a.y *= 0.995;
diff --git a/zig-out/bin/raylib-test b/zig-out/bin/raylib-test
index 7ab64c6..bac3965 100755
Binary files a/zig-out/bin/raylib-test and b/zig-out/bin/raylib-test differ