diff --git a/templates/tools/fuzzer/runners.template b/templates/tools/fuzzer/runners.template
index 287bb2acbf7c9db67eb626fff4e50fd440ff95e3..aa81a6545d7d2f121e17219ccb43130047738089 100644
--- a/templates/tools/fuzzer/runners.template
+++ b/templates/tools/fuzzer/runners.template
@@ -35,7 +35,7 @@ template: |
   # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   #
 
-  flags="-max_total_time=3600 -jobs=20 -workers=20"
+  flags="-max_total_time=3600 -jobs=3 -workers=3"
   if [ "$config" == "asan-trace-cmp" ]
   then
     flags="-use_traces=1 $flags"
diff --git a/tools/fuzzer/runners/hpack_parser_fuzzer_test.sh b/tools/fuzzer/runners/hpack_parser_fuzzer_test.sh
index 6f89e5250cd924635fb3ffe4c64980d379b11a61..a91cf6d458fbadb532cc0af4c60ba3fdd424d799 100644
--- a/tools/fuzzer/runners/hpack_parser_fuzzer_test.sh
+++ b/tools/fuzzer/runners/hpack_parser_fuzzer_test.sh
@@ -29,7 +29,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-flags="-max_total_time=3600 -jobs=20 -workers=20"
+flags="-max_total_time=3600 -jobs=3 -workers=3"
 if [ "$config" == "asan-trace-cmp" ]
 then
   flags="-use_traces=1 $flags"
diff --git a/tools/fuzzer/runners/http_fuzzer_test.sh b/tools/fuzzer/runners/http_fuzzer_test.sh
index fb7120ddce0e0dd1732030b71e37bd6352434eb8..47adad0cb761b4245f9f3890283e8dd2319a01a7 100644
--- a/tools/fuzzer/runners/http_fuzzer_test.sh
+++ b/tools/fuzzer/runners/http_fuzzer_test.sh
@@ -29,7 +29,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-flags="-max_total_time=3600 -jobs=20 -workers=20"
+flags="-max_total_time=3600 -jobs=3 -workers=3"
 if [ "$config" == "asan-trace-cmp" ]
 then
   flags="-use_traces=1 $flags"
diff --git a/tools/fuzzer/runners/json_fuzzer_test.sh b/tools/fuzzer/runners/json_fuzzer_test.sh
index fc10c77193773c7f9532fb1b57c4798155bcc5ad..9c5cba3bafd71ad8a1237d1ba944713cfbf0c8db 100644
--- a/tools/fuzzer/runners/json_fuzzer_test.sh
+++ b/tools/fuzzer/runners/json_fuzzer_test.sh
@@ -29,7 +29,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-flags="-max_total_time=3600 -jobs=20 -workers=20"
+flags="-max_total_time=3600 -jobs=3 -workers=3"
 if [ "$config" == "asan-trace-cmp" ]
 then
   flags="-use_traces=1 $flags"
diff --git a/tools/fuzzer/runners/uri_fuzzer_test.sh b/tools/fuzzer/runners/uri_fuzzer_test.sh
index fb2fa69e34426bfd17428b1cefd1f9441218ad09..58f20d021c259d8b6b684c935f65b505bf40c81c 100644
--- a/tools/fuzzer/runners/uri_fuzzer_test.sh
+++ b/tools/fuzzer/runners/uri_fuzzer_test.sh
@@ -29,7 +29,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 
-flags="-max_total_time=3600 -jobs=20 -workers=20"
+flags="-max_total_time=3600 -jobs=3 -workers=3"
 if [ "$config" == "asan-trace-cmp" ]
 then
   flags="-use_traces=1 $flags"