diff --git a/spectest/mainnet/altair/finality/BUILD.bazel b/spectest/mainnet/altair/finality/BUILD.bazel
index cecbe0173..2390a5b2c 100644
--- a/spectest/mainnet/altair/finality/BUILD.bazel
+++ b/spectest/mainnet/altair/finality/BUILD.bazel
@@ -2,7 +2,7 @@ load("@prysm//tools/go:def.bzl", "go_test")
 
 go_test(
     name = "go_default_test",
-    size = "small",
+    size = "medium",
     srcs = ["finality_test.go"],
     data = glob(["*.yaml"]) + [
         "@consensus_spec_tests_mainnet//:test_data",
diff --git a/spectest/mainnet/altair/random/BUILD.bazel b/spectest/mainnet/altair/random/BUILD.bazel
index 24831ad79..555fc8795 100644
--- a/spectest/mainnet/altair/random/BUILD.bazel
+++ b/spectest/mainnet/altair/random/BUILD.bazel
@@ -2,7 +2,7 @@ load("@prysm//tools/go:def.bzl", "go_test")
 
 go_test(
     name = "go_default_test",
-    size = "small",
+    size = "medium",
     srcs = ["random_test.go"],
     data = glob(["*.yaml"]) + [
         "@consensus_spec_tests_mainnet//:test_data",
diff --git a/spectest/mainnet/altair/sanity/BUILD.bazel b/spectest/mainnet/altair/sanity/BUILD.bazel
index 251bc25bf..aa3e343c9 100644
--- a/spectest/mainnet/altair/sanity/BUILD.bazel
+++ b/spectest/mainnet/altair/sanity/BUILD.bazel
@@ -2,7 +2,7 @@ load("@prysm//tools/go:def.bzl", "go_test")
 
 go_test(
     name = "go_default_test",
-    size = "small",
+    size = "medium",
     srcs = [
         "blocks_test.go",
         "slots_test.go",
diff --git a/spectest/mainnet/phase0/finality/BUILD.bazel b/spectest/mainnet/phase0/finality/BUILD.bazel
index 09dd00015..23bcb2183 100644
--- a/spectest/mainnet/phase0/finality/BUILD.bazel
+++ b/spectest/mainnet/phase0/finality/BUILD.bazel
@@ -2,7 +2,7 @@ load("@prysm//tools/go:def.bzl", "go_test")
 
 go_test(
     name = "go_default_test",
-    size = "small",
+    size = "medium",
     srcs = ["finality_test.go"],
     data = glob(["*.yaml"]) + [
         "@consensus_spec_tests_mainnet//:test_data",
diff --git a/spectest/mainnet/phase0/random/BUILD.bazel b/spectest/mainnet/phase0/random/BUILD.bazel
index 621ecafe3..9eee1efea 100644
--- a/spectest/mainnet/phase0/random/BUILD.bazel
+++ b/spectest/mainnet/phase0/random/BUILD.bazel
@@ -2,7 +2,7 @@ load("@prysm//tools/go:def.bzl", "go_test")
 
 go_test(
     name = "go_default_test",
-    size = "small",
+    size = "medium",
     srcs = ["random_test.go"],
     data = glob(["*.yaml"]) + [
         "@consensus_spec_tests_mainnet//:test_data",
diff --git a/spectest/mainnet/phase0/sanity/BUILD.bazel b/spectest/mainnet/phase0/sanity/BUILD.bazel
index b2a9ddd6c..8096369c4 100644
--- a/spectest/mainnet/phase0/sanity/BUILD.bazel
+++ b/spectest/mainnet/phase0/sanity/BUILD.bazel
@@ -2,7 +2,7 @@ load("@prysm//tools/go:def.bzl", "go_test")
 
 go_test(
     name = "go_default_test",
-    size = "small",
+    size = "medium",
     srcs = [
         "blocks_test.go",
         "slots_test.go",