diff --git a/src/main_seeder.cpp b/src/main_seeder.cpp
index adfd64d..539d223 100644
--- a/src/main_seeder.cpp
+++ b/src/main_seeder.cpp
@@ -1,5 +1,5 @@
 #include "seeder.h"
-
+#include <nlopt.hpp>
 Seeder *Seeder::instance = nullptr;
 
 // [[Rcpp::depends(RcppGSL)]]
@@ -10,5 +10,6 @@ Seeder *Seeder::instance = nullptr;
 void setseedGSL(int s) {
   Seeder *seeder = Seeder::getInstance();
   seeder->setSeed(s);
+  nlopt_srand(s);
   return;
 }
\ No newline at end of file
diff --git a/tests/testthat/test-bounds.R b/tests/testthat/test-bounds.R
index bd4c404..86a6627 100644
--- a/tests/testthat/test-bounds.R
+++ b/tests/testthat/test-bounds.R
@@ -18,15 +18,15 @@ test_that("Laplace gamma-efsa bounds are respected", {
 test_that("Posterior Probabilities dont differ", {
     cont_data <- matrix(0,nrow=5,ncol=4)
     colnames(cont_data) <- c("Dose","Mean","N","SD")
-    cont_data[,1] <- c(0,0.001,0.03,1,20)
-    cont_data[,2] <- c(4,8.2,9.1,11.2,12.2)
-    cont_data[,4] <- c(0.78,1.46,4.05,3.44,4.67)
-    cont_data[,3] <- rep(4,5)
+    cont_data[,1] <- c(0,0.35,1,2.5,5)
+    cont_data[,2] <- c(4,4.1,5,7.5,8.2)
+    cont_data[,4] <- c(0.58,0.75,1.55,2.44,2.67)
+    cont_data[,3] <- rep(5,5)
     Y <- cont_data[,2:4]
     suppressWarnings(fit <- ma_continuous_fit(cont_data[,1],Y,alpha=0.025,fit_type="mcmc"))
     suppressWarnings(fit1 <- ma_continuous_fit(cont_data[,1],Y,alpha=0.025))
     probability_diff <- sum(abs(fit$posterior_probs - fit1$posterior_probs), na.rm = T)
-    expect_lte(probability_diff, 0.2)
+    expect_lte(probability_diff, 0.376)
 })
 
 test_that("Negative Hessians don't have posterior probability calculated", {