diff --git a/HLTriggerOffline/Egamma/interface/EmDQMReco.h b/HLTriggerOffline/Egamma/interface/EmDQMReco.h
index 6a096cc07f8d5..c8f732017ae6d 100644
--- a/HLTriggerOffline/Egamma/interface/EmDQMReco.h
+++ b/HLTriggerOffline/Egamma/interface/EmDQMReco.h
@@ -52,8 +52,8 @@ class EmDQMReco : public DQMEDAnalyzer {
   class FourVectorMonitorElements {
   public:
     /** @param histogramNameTemplate should be a format string (like used in
-     * printf(..) or boost::format(..) for the histogram NAME where the first %s
-     * is replaced with et,eta or phi.
+     * printf(..) for the histogram NAME where the first %s is replaced with 
+     * et,eta or phi.
      *
      *  @param histogramTitleTemplate should be a format string (see
      * histogramNameTemplate) for the histogram TITLE where the first %s is
diff --git a/HLTriggerOffline/Egamma/src/EmDQMReco.cc b/HLTriggerOffline/Egamma/src/EmDQMReco.cc
index 58d6ce4d605c9..94f6ae952315c 100644
--- a/HLTriggerOffline/Egamma/src/EmDQMReco.cc
+++ b/HLTriggerOffline/Egamma/src/EmDQMReco.cc
@@ -1,4 +1,17 @@
-////////////////////////////////////////////////////////////////////////////
+#include <iostream>
+#include <string>
+
+#include <fmt/printf.h>
+
+////////////////////////////////////////////////////////////////////////////////
+//                           Root include files                               //
+////////////////////////////////////////////////////////////////////////////////
+#include <TDirectory.h>
+#include <TFile.h>
+#include <TH1F.h>
+#include <Math/VectorUtil.h>
+
+////////////////////////////////////////////////////////////////////////////////
 //                    Header file for this                                    //
 ////////////////////////////////////////////////////////////////////////////////
 #include "HLTriggerOffline/Egamma/interface/EmDQMReco.h"
@@ -6,40 +19,26 @@
 ////////////////////////////////////////////////////////////////////////////////
 //                    Collaborating Class Header                              //
 ////////////////////////////////////////////////////////////////////////////////
-#include "DataFormats/EgammaCandidates/interface/Electron.h"
-#include "DataFormats/HLTReco/interface/TriggerEventWithRefs.h"
-#include "DataFormats/RecoCandidate/interface/RecoEcalCandidate.h"
-#include "FWCore/Framework/interface/Frameworkfwd.h"
-#include "FWCore/Framework/interface/MakerMacros.h"
-#include "FWCore/ParameterSet/interface/ParameterSet.h"
-//#include "DataFormats/EgammaCandidates/interface/PhotonFwd.h"
-//#include "DataFormats/EgammaCandidates/interface/Photon.h"
-#include "DataFormats/L1Trigger/interface/L1EmParticle.h"
-#include "DataFormats/L1Trigger/interface/L1EmParticleFwd.h"
-//#include "SimDataFormats/HepMCProduct/interface/HepMCProduct.h"
 #include "DataFormats/Common/interface/AssociationMap.h"
-#include "FWCore/MessageLogger/interface/MessageLogger.h"
-#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
-
 #include "DataFormats/Common/interface/Handle.h"
 #include "DataFormats/Common/interface/RefToBase.h"
-#include "FWCore/ServiceRegistry/interface/Service.h"
-//#include "PhysicsTools/UtilAlgos/interface/TFileService.h"
 #include "DataFormats/Common/interface/TriggerResults.h"
+#include "DataFormats/EgammaCandidates/interface/Electron.h"
 #include "DataFormats/HLTReco/interface/TriggerEvent.h"
+#include "DataFormats/HLTReco/interface/TriggerEventWithRefs.h"
 #include "DataFormats/HLTReco/interface/TriggerObject.h"
 #include "DataFormats/HLTReco/interface/TriggerTypeDefs.h"
+#include "DataFormats/L1Trigger/interface/L1EmParticle.h"
+#include "DataFormats/L1Trigger/interface/L1EmParticleFwd.h"
+#include "DataFormats/RecoCandidate/interface/RecoEcalCandidate.h"
+#include "FWCore/Framework/interface/Frameworkfwd.h"
+#include "FWCore/Framework/interface/MakerMacros.h"
+#include "FWCore/MessageLogger/interface/MessageLogger.h"
+#include "FWCore/ParameterSet/interface/ParameterSet.h"
+#include "FWCore/ServiceRegistry/interface/Service.h"
 #include "FWCore/Utilities/interface/Exception.h"
-#include <boost/format.hpp>
-////////////////////////////////////////////////////////////////////////////////
-//                           Root include files                               //
-////////////////////////////////////////////////////////////////////////////////
-#include "TDirectory.h"
-#include "TFile.h"
-#include "TH1F.h"
-#include <Math/VectorUtil.h>
-#include <iostream>
-#include <string>
+#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
+
 using namespace ROOT::Math::VectorUtil;
 
 //----------------------------------------------------------------------
@@ -55,20 +54,20 @@ EmDQMReco::FourVectorMonitorElements::FourVectorMonitorElements(EmDQMReco *_pare
   std::string histTitle;
 
   // et
-  histName = boost::str(boost::format(histogramNameTemplate) % "et");
-  histTitle = boost::str(boost::format(histogramTitleTemplate) % "E_{T}");
+  histName = fmt::sprintf(histogramNameTemplate, "et");
+  histTitle = fmt::sprintf(histogramTitleTemplate, "E_{T}");
   etMonitorElement =
       iBooker.book1D(histName.c_str(), histTitle.c_str(), parent->plotBins, parent->plotPtMin, parent->plotPtMax);
 
   // eta
-  histName = boost::str(boost::format(histogramNameTemplate) % "eta");
-  histTitle = boost::str(boost::format(histogramTitleTemplate) % "#eta");
+  histName = fmt::sprintf(histogramNameTemplate, "eta");
+  histTitle = fmt::sprintf(histogramTitleTemplate, "#eta");
   etaMonitorElement =
       iBooker.book1D(histName.c_str(), histTitle.c_str(), parent->plotBins, -parent->plotEtaMax, parent->plotEtaMax);
 
   // phi
-  histName = boost::str(boost::format(histogramNameTemplate) % "phi");
-  histTitle = boost::str(boost::format(histogramTitleTemplate) % "#phi");
+  histName = fmt::sprintf(histogramNameTemplate, "phi");
+  histTitle = fmt::sprintf(histogramTitleTemplate, "#phi");
   phiMonitorElement =
       iBooker.book1D(histName.c_str(), histTitle.c_str(), parent->plotBins, -parent->plotPhiMax, parent->plotPhiMax);
 }