diff --git a/SOURCES/openvswitch-2.15.0.patch b/SOURCES/openvswitch-2.15.0.patch
index d514e38..3e05b95 100644
--- a/SOURCES/openvswitch-2.15.0.patch
+++ b/SOURCES/openvswitch-2.15.0.patch
@@ -401,6 +401,44 @@ index 4f43369844..0c18c62548 100644
      }
  
      return status;
+diff --git a/datapath-windows/ovsext/Conntrack.c b/datapath-windows/ovsext/Conntrack.c
+index 2610d626a0..fd6f3bae04 100644
+--- a/datapath-windows/ovsext/Conntrack.c
++++ b/datapath-windows/ovsext/Conntrack.c
+@@ -493,15 +493,32 @@ static __inline NDIS_STATUS
+ OvsDetectCtPacket(OvsForwardingContext *fwdCtx,
+                   OvsFlowKey *key)
+ {
++    NDIS_STATUS status = NDIS_STATUS_SUCCESS;
++    OvsFlowKey  newFlowKey = { 0 };
++
+     switch (ntohs(key->l2.dlType)) {
+     case ETH_TYPE_IPV4:
+         if (key->ipKey.nwFrag != OVS_FRAG_TYPE_NONE) {
+-            return OvsProcessIpv4Fragment(fwdCtx->switchContext,
++            status = OvsProcessIpv4Fragment(fwdCtx->switchContext,
+                                           &fwdCtx->curNbl,
+                                           fwdCtx->completionList,
+                                           fwdCtx->fwdDetail->SourcePortId,
+                                           &fwdCtx->layers,
+                                           key->tunKey.tunnelId);
++            if (status == NDIS_STATUS_SUCCESS) {
++                 /* After the Ipv4 Fragment is reassembled, update flow key as
++                   L3 and L4 headers are not correct */
++                 status =
++                      OvsExtractFlow(fwdCtx->curNbl, fwdCtx->srcVportNo,
++                                     &newFlowKey, &fwdCtx->layers,
++                                     fwdCtx->tunKey.dst != 0 ? &fwdCtx->tunKey : NULL);
++                if (status != NDIS_STATUS_SUCCESS) {
++                     OVS_LOG_ERROR("Extract flow failed Nbl %p", fwdCtx->curNbl);
++                     return status;
++                 }
++                *key = newFlowKey;
++            }
++            return status;
+         }
+         if (key->ipKey.nwProto == IPPROTO_TCP
+             || key->ipKey.nwProto == IPPROTO_UDP
 diff --git a/datapath-windows/ovsext/Recirc.c b/datapath-windows/ovsext/Recirc.c
 index 2febf060dd..a32b75352b 100644
 --- a/datapath-windows/ovsext/Recirc.c
diff --git a/SPECS/openvswitch2.15.spec b/SPECS/openvswitch2.15.spec
index 5b72eb1..b103083 100644
--- a/SPECS/openvswitch2.15.spec
+++ b/SPECS/openvswitch2.15.spec
@@ -57,7 +57,7 @@ Summary: Open vSwitch
 Group: System Environment/Daemons daemon/database/utilities
 URL: http://www.openvswitch.org/
 Version: 2.15.0
-Release: 51%{?dist}
+Release: 52%{?dist}
 
 # Nearly all of openvswitch is ASL 2.0.  The bugtool is LGPLv2+, and the
 # lib/sflow*.[ch] files are SISSL
@@ -699,6 +699,12 @@ exit 0
 %endif
 
 %changelog
+* Mon Nov 15 2021 Open vSwitch CI <ovs-ci@redhat.com> - 2.15.0-52
+- Merging upstream branch-2.15 [RH git: 001ae577c6]
+    Commit list:
+    08a270dda1 datapath-windows: Reset flow key after Ipv4 fragments are reassembled
+
+
 * Thu Oct 28 2021 Open vSwitch CI <ovs-ci@redhat.com> - 2.15.0-51
 - Merging upstream branch-2.15 [RH git: a134a530c9]
     Commit list: